125145 has 24 divisors (see below), whose sum is σ = 227136. Its totient is φ = 66096.

The previous prime is 125141. The next prime is 125149. The reversal of 125145 is 541521.

It is an interprime number because it is at equal distance from previous prime (125141) and next prime (125149).

It is not a de Polignac number, because 125145 - 2² = 125141 is a prime.

It is a super-2 number, since 2×125145² = 31322542050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1164 + ... + 1266.

It is an arithmetic number, because the mean of its divisors is an integer number (9464).

2¹²⁵¹⁴⁵ is an apocalyptic number.

125145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125145 is a deficient number, since it is larger than the sum of its proper divisors (101991).

125145 is an equidigital number, since it uses as much as digits as its factorization.

125145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 111 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 125145 is about 353.7583921266. The cubic root of 125145 is about 50.0193258626.

Adding to 125145 its reverse (541521), we get a palindrome (666666).

It can be divided in two parts, 1251 and 45, that added together give a 4-th power (1296 = 6⁴).

The spelling of 125145 in words is "one hundred twenty-five thousand, one hundred forty-five".