125544 has 16 divisors (see below), whose sum is σ = 313920. Its totient is φ = 41840.

The previous prime is 125539. The next prime is 125551. The reversal of 125544 is 445521.

It is a super-2 number, since 2×125544² = 31522591872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125544.

It is an unprimeable number.

125544 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2592 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (19620).

2¹²⁵⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

125544 is an abundant number, since it is smaller than the sum of its proper divisors (188376).

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

125544 is a wasteful number, since it uses less digits than its factorization.

125544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240 (or 5236 counting only the distinct ones).

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

The square root of 125544 is about 354.3218875542. The cubic root of 125544 is about 50.0724283653.

The spelling of 125544 in words is "one hundred twenty-five thousand, five hundred forty-four".