125661432 has 32 divisors (see below), whose sum is σ = 338320080. Its totient is φ = 38664960.

The previous prime is 125661377. The next prime is 125661449. The reversal of 125661432 is 234166521.

It is a self number, because there is not a number n which added to its sum of digits gives 125661432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201069 + ... + 201692.

Almost surely, 2^125661432 is an apocalyptic number.

125661432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125661432 is an abundant number, since it is smaller than the sum of its proper divisors (212658648).

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

125661432 is a wasteful number, since it uses less digits than its factorization.

125661432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402783 (or 402779 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 125661432 is about 11209.8809984763. The cubic root of 125661432 is about 500.8803583619.

The spelling of 125661432 in words is "one hundred twenty-five million, six hundred sixty-one thousand, four hundred thirty-two".