164904946 has 8 divisors (see below), whose sum is σ = 247485420. Its totient is φ = 82409808.

The previous prime is 164904931. The next prime is 164904953. The reversal of 164904946 is 649409461.

It can be written as a sum of positive squares in 2 ways, for example, as 164839921 + 65025 = 12839^2 + 255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16261 + ... + 24376.

Almost surely, 2^164904946 is an apocalyptic number.

164904946 is a deficient number, since it is larger than the sum of its proper divisors (82580474).

164904946 is a wasteful number, since it uses less digits than its factorization.

164904946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42668.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 164904946 is about 12841.5320737052. The cubic root of 164904946 is about 548.3753112132.

The spelling of 164904946 in words is "one hundred sixty-four million, nine hundred four thousand, nine hundred forty-six".