245154 has 32 divisors (see below), whose sum is σ = 604800. Its totient is φ = 64512.

The previous prime is 245149. The next prime is 245171. The reversal of 245154 is 451542.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322 + ... + 770.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2²⁴⁵¹⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400).

245154 is an abundant number, since it is smaller than the sum of its proper divisors (359646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245154 is a wasteful number, since it uses less digits than its factorization.

245154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its digits is 800, while the sum is 21.

The square root of 245154 is about 495.1302858844. The cubic root of 245154 is about 62.5863552959.

Adding to 245154 its reverse (451542), we get a palindrome (696696).

The spelling of 245154 in words is "two hundred forty-five thousand, one hundred fifty-four".