125705724 has 24 divisors (see below), whose sum is σ = 301241808. Its totient is φ = 40769280.

The previous prime is 125705719. The next prime is 125705747. The reversal of 125705724 is 427507521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141117 + ... + 142004.

It is an arithmetic number, because the mean of its divisors is an integer number (12551742).

Almost surely, 2^125705724 is an apocalyptic number.

It is an amenable number.

125705724 is an abundant number, since it is smaller than the sum of its proper divisors (175536084).

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

125705724 is a wasteful number, since it uses less digits than its factorization.

125705724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283165 (or 283163 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 125705724 is about 11211.8564029335. The cubic root of 125705724 is about 500.9392000353.

The spelling of 125705724 in words is "one hundred twenty-five million, seven hundred five thousand, seven hundred twenty-four".