125661712 has 20 divisors (see below), whose sum is σ = 265603536. Its totient is φ = 57118880.

The previous prime is 125661709. The next prime is 125661737. The reversal of 125661712 is 217166521.

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, 356818 + ... + 357169.

Almost surely, 2^125661712 is an apocalyptic number.

It is an amenable number.

125661712 is an abundant number, since it is smaller than the sum of its proper divisors (139941824).

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

125661712 is a wasteful number, since it uses less digits than its factorization.

125661712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714006 (or 714000 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 125661712 is about 11209.8934874512. The cubic root of 125661712 is about 500.8807303838.

The spelling of 125661712 in words is "one hundred twenty-five million, six hundred sixty-one thousand, seven hundred twelve".