185164864 has 14 divisors (see below), whose sum is σ = 367436654. Its totient is φ = 92582400.

The previous prime is 185164849. The next prime is 185164871. The reversal of 185164864 is 468461581.

185164864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163635264 + 21529600 = 12792^2 + 4640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 185164864.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1446537 + ... + 1446664.

Almost surely, 2^185164864 is an apocalyptic number.

It is an amenable number.

185164864 is a deficient number, since it is larger than the sum of its proper divisors (182271790).

185164864 is an equidigital number, since it uses as much as digits as its factorization.

185164864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893213 (or 2893203 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 185164864 is about 13607.5296802910. The cubic root of 185164864 is about 569.9711322202.

The spelling of 185164864 in words is "one hundred eighty-five million, one hundred sixty-four thousand, eight hundred sixty-four".