73125657 has 12 divisors (see below), whose sum is σ = 115228464. Its totient is φ = 44318520.

The previous prime is 73125631. The next prime is 73125659. The reversal of 73125657 is 75652137.

It is not a de Polignac number, because 73125657 - 2⁸ = 73125401 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (73125659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369223 + ... + 369420.

It is an arithmetic number, because the mean of its divisors is an integer number (9602372).

Almost surely, 2^73125657 is an apocalyptic number.

It is an amenable number.

73125657 is a deficient number, since it is larger than the sum of its proper divisors (42102807).

73125657 is a wasteful number, since it uses less digits than its factorization.

73125657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738660 (or 738657 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 73125657 is about 8551.3541032985. The cubic root of 73125657 is about 418.1735827372.

The spelling of 73125657 in words is "seventy-three million, one hundred twenty-five thousand, six hundred fifty-seven".