164569475 has 24 divisors (see below), whose sum is σ = 233818368. Its totient is φ = 112557600.

The previous prime is 164569463. The next prime is 164569477. The reversal of 164569475 is 574965461.

It is not a de Polignac number, because 164569475 - 2⁶ = 164569411 is a prime.

It is a super-2 number, since 2×164569475² = 54166224203551250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164569477) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 84260 + ... + 86190.

It is an arithmetic number, because the mean of its divisors is an integer number (9742432).

Almost surely, 2^164569475 is an apocalyptic number.

164569475 is a deficient number, since it is larger than the sum of its proper divisors (69248893).

164569475 is a wasteful number, since it uses less digits than its factorization.

164569475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 2430 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 164569475 is about 12828.4634699562. The cubic root of 164569475 is about 548.0032000719.

The spelling of 164569475 in words is "one hundred sixty-four million, five hundred sixty-nine thousand, four hundred seventy-five".