125305542 has 20 divisors (see below), whose sum is σ = 280777596. Its totient is φ = 41768460.

The previous prime is 125305519. The next prime is 125305559. The reversal of 125305542 is 245503521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 386584 + ... + 386907.

Almost surely, 2^125305542 is an apocalyptic number.

125305542 is an abundant number, since it is smaller than the sum of its proper divisors (155472054).

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

125305542 is an equidigital number, since it uses as much as digits as its factorization.

125305542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773505 (or 773496 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 125305542 is about 11193.9958013213. The cubic root of 125305542 is about 500.4070578512.

The spelling of 125305542 in words is "one hundred twenty-five million, three hundred five thousand, five hundred forty-two".