125442756 has 30 divisors (see below), whose sum is σ = 327932990. Its totient is φ = 41814144.

The previous prime is 125442743. The next prime is 125442761. The reversal of 125442756 is 657244521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 110880900 + 14561856 = 10530^2 + 3816^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 125442756.

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, 193261 + ... + 193908.

Almost surely, 2^125442756 is an apocalyptic number.

It is an amenable number.

125442756 is an abundant number, since it is smaller than the sum of its proper divisors (202490234).

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

125442756 is a wasteful number, since it uses less digits than its factorization.

125442756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387185 (or 387174 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 125442756 is about 11200.1230350385. The cubic root of 125442756 is about 500.5896456959.

The spelling of 125442756 in words is "one hundred twenty-five million, four hundred forty-two thousand, seven hundred fifty-six".