125661868 has 6 divisors (see below), whose sum is σ = 219908276. Its totient is φ = 62830932.

The previous prime is 125661829. The next prime is 125661919. The reversal of 125661868 is 868166521.

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 as a sum of consecutive naturals, namely, 15707730 + ... + 15707737.

Almost surely, 2^125661868 is an apocalyptic number.

It is an amenable number.

125661868 is a deficient number, since it is larger than the sum of its proper divisors (94246408).

125661868 is a wasteful number, since it uses less digits than its factorization.

125661868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31415471 (or 31415469 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 125661868 is about 11209.9004455883. The cubic root of 125661868 is about 500.8809376528.

The spelling of 125661868 in words is "one hundred twenty-five million, six hundred sixty-one thousand, eight hundred sixty-eight".