Search a number
-
+
155127 = 378389
BaseRepresentation
bin100101110111110111
321212210110
4211313313
514431002
63154103
71214160
oct456767
9255713
10155127
11a6605
1275933
13557bb
1440767
1530e6c
hex25df7

155127 has 16 divisors (see below), whose sum is σ = 241920. Its totient is φ = 86592.

The previous prime is 155119. The next prime is 155137. The reversal of 155127 is 721551.

155127 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 155127 - 23 = 155119 is a prime.

It is a super-2 number, since 2×1551272 = 48128772258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2155127 is an apocalyptic number.

155127 is a deficient number, since it is larger than the sum of its proper divisors (86793).

155127 is an equidigital number, since it uses as much as digits as its factorization.

155127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its digits is 350, while the sum is 21.

The square root of 155127 is about 393.8616508369. The cubic root of 155127 is about 53.7315205990.

Adding to 155127 its reverse (721551), we get a palindrome (876678).

It can be divided in two parts, 155 and 127, that added together give a palindrome (282).

The spelling of 155127 in words is "one hundred fifty-five thousand, one hundred twenty-seven".

Divisors: 1 3 7 21 83 89 249 267 581 623 1743 1869 7387 22161 51709 155127