125540512 has 24 divisors (see below), whose sum is σ = 261697716. Its totient is φ = 59077632.

The previous prime is 125540489. The next prime is 125540537. The reversal of 125540512 is 215045521.

It can be written as a sum of positive squares in 2 ways, for example, as 125350416 + 190096 = 11196^2 + 436^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114843 + ... + 115930.

Almost surely, 2^125540512 is an apocalyptic number.

It is an amenable number.

125540512 is an abundant number, since it is smaller than the sum of its proper divisors (136157204).

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

125540512 is a wasteful number, since it uses less digits than its factorization.

125540512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230800 (or 230792 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 125540512 is about 11204.4862443577. The cubic root of 125540512 is about 500.7196463879.

The spelling of 125540512 in words is "one hundred twenty-five million, five hundred forty thousand, five hundred twelve".