125664418 has 16 divisors (see below), whose sum is σ = 205804800. Its totient is φ = 57072400.

The previous prime is 125664403. The next prime is 125664419. The reversal of 125664418 is 814466521.

It is not an unprimeable number, because it can be changed into a prime (125664419) by changing a digit.

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, 51183 + ... + 53581.

It is an arithmetic number, because the mean of its divisors is an integer number (12862800).

Almost surely, 2^125664418 is an apocalyptic number.

125664418 is a deficient number, since it is larger than the sum of its proper divisors (80140382).

125664418 is a wasteful number, since it uses less digits than its factorization.

125664418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793.

The product of its digits is 46080, while the sum is 37.

The square root of 125664418 is about 11210.0141837555. The cubic root of 125664418 is about 500.8843256808.

The spelling of 125664418 in words is "one hundred twenty-five million, six hundred sixty-four thousand, four hundred eighteen".