125474728 has 8 divisors (see below), whose sum is σ = 235265130. Its totient is φ = 62737360.

The previous prime is 125474717. The next prime is 125474749. The reversal of 125474728 is 827474521.

It can be written as a sum of positive squares in only one way, i.e., 125395204 + 79524 = 11198^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7842163 + ... + 7842178.

Almost surely, 2^125474728 is an apocalyptic number.

It is an amenable number.

125474728 is a deficient number, since it is larger than the sum of its proper divisors (109790402).

125474728 is a wasteful number, since it uses less digits than its factorization.

125474728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684347 (or 15684343 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 125474728 is about 11201.5502498538. The cubic root of 125474728 is about 500.6321710493.

The spelling of 125474728 in words is "one hundred twenty-five million, four hundred seventy-four thousand, seven hundred twenty-eight".