164557023 has 8 divisors (see below), whose sum is σ = 221539968. Its totient is φ = 108639384.

The previous prime is 164557009. The next prime is 164557033. The reversal of 164557023 is 320755461.

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

It is not a de Polignac number, because 164557023 - 2⁴ = 164557007 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164557033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265965 + ... + 266582.

It is an arithmetic number, because the mean of its divisors is an integer number (27692496).

Almost surely, 2^164557023 is an apocalyptic number.

164557023 is a deficient number, since it is larger than the sum of its proper divisors (56982945).

164557023 is a wasteful number, since it uses less digits than its factorization.

164557023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532653.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 164557023 is about 12827.9781337512. The cubic root of 164557023 is about 547.9893783350.

The spelling of 164557023 in words is "one hundred sixty-four million, five hundred fifty-seven thousand, twenty-three".