68565172 has 24 divisors (see below), whose sum is σ = 130437216. Its totient is φ = 31347168.

The previous prime is 68565157. The next prime is 68565173. The reversal of 68565172 is 27156586.

It is a super-2 number, since 2×68565172² = 9402365622779168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68565173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598 + ... + 11725.

It is an arithmetic number, because the mean of its divisors is an integer number (5434884).

Almost surely, 2^68565172 is an apocalyptic number.

It is an amenable number.

68565172 is a deficient number, since it is larger than the sum of its proper divisors (61872044).

68565172 is a wasteful number, since it uses less digits than its factorization.

68565172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12447 (or 12445 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 68565172 is about 8280.4089271002. The cubic root of 68565172 is about 409.2931942825.

The spelling of 68565172 in words is "sixty-eight million, five hundred sixty-five thousand, one hundred seventy-two".