125813442 has 16 divisors (see below), whose sum is σ = 257479200. Its totient is φ = 40962432.

The previous prime is 125813437. The next prime is 125813477. The reversal of 125813442 is 244318521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243567 + ... + 244082.

It is an arithmetic number, because the mean of its divisors is an integer number (16092450).

Almost surely, 2^125813442 is an apocalyptic number.

125813442 is an abundant number, since it is smaller than the sum of its proper divisors (131665758).

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

125813442 is a wasteful number, since it uses less digits than its factorization.

125813442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487697.

The product of its digits is 7680, while the sum is 30.

The square root of 125813442 is about 11216.6591282788. The cubic root of 125813442 is about 501.0822451342.

The spelling of 125813442 in words is "one hundred twenty-five million, eight hundred thirteen thousand, four hundred forty-two".