164904291 has 6 divisors (see below), whose sum is σ = 238195100. Its totient is φ = 109936188.

The previous prime is 164904281. The next prime is 164904323. The reversal of 164904291 is 192409461.

It is a happy number.

164904291 is a `hidden beast` number, since 1 + 649 + 0 + 4 + 2 + 9 + 1 = 666.

It is not a de Polignac number, because 164904291 - 2⁷ = 164904163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164904251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9161341 + ... + 9161358.

Almost surely, 2^164904291 is an apocalyptic number.

164904291 is a deficient number, since it is larger than the sum of its proper divisors (73290809).

164904291 is a wasteful number, since it uses less digits than its factorization.

164904291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18322705 (or 18322702 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 164904291 is about 12841.5065704924. The cubic root of 164904291 is about 548.3745851661.

The spelling of 164904291 in words is "one hundred sixty-four million, nine hundred four thousand, two hundred ninety-one".