164895538 has 16 divisors (see below), whose sum is σ = 250639704. Its totient is φ = 81354240.

The previous prime is 164895517. The next prime is 164895553. The reversal of 164895538 is 835598461.

It can be written as a sum of positive squares in 4 ways, for example, as 164531929 + 363609 = 12827^2 + 603^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164895491 and 164895500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75948 + ... + 78088.

Almost surely, 2^164895538 is an apocalyptic number.

164895538 is a deficient number, since it is larger than the sum of its proper divisors (85744166).

164895538 is a wasteful number, since it uses less digits than its factorization.

164895538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637.

The product of its digits is 1036800, while the sum is 49.

The square root of 164895538 is about 12841.1657570487. The cubic root of 164895538 is about 548.3648825528.

The spelling of 164895538 in words is "one hundred sixty-four million, eight hundred ninety-five thousand, five hundred thirty-eight".