164542044 has 12 divisors (see below), whose sum is σ = 383931464. Its totient is φ = 54847344.

The previous prime is 164542039. The next prime is 164542097. The reversal of 164542044 is 440245461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6855907 + ... + 6855930.

Almost surely, 2^164542044 is an apocalyptic number.

It is an amenable number.

164542044 is an abundant number, since it is smaller than the sum of its proper divisors (219389420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164542044 is a wasteful number, since it uses less digits than its factorization.

164542044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13711844 (or 13711842 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 164542044 is about 12827.3942794318. The cubic root of 164542044 is about 547.9727507007.

The spelling of 164542044 in words is "one hundred sixty-four million, five hundred forty-two thousand, forty-four".