125415642 has 32 divisors (see below), whose sum is σ = 285534720. Its totient is φ = 36351920.

The previous prime is 125415629. The next prime is 125415683. The reversal of 125415642 is 246514521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39792 + ... + 42827.

It is an arithmetic number, because the mean of its divisors is an integer number (8922960).

Almost surely, 2^125415642 is an apocalyptic number.

125415642 is an abundant number, since it is smaller than the sum of its proper divisors (160119078).

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

125415642 is a wasteful number, since it uses less digits than its factorization.

125415642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82658.

The product of its digits is 9600, while the sum is 30.

The square root of 125415642 is about 11198.9125364921. The cubic root of 125415642 is about 500.5535762139.

The spelling of 125415642 in words is "one hundred twenty-five million, four hundred fifteen thousand, six hundred forty-two".