164923499 has 4 divisors (see below), whose sum is σ = 177609936. Its totient is φ = 152237064.

The previous prime is 164923489. The next prime is 164923519. The reversal of 164923499 is 994329461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164923499 - 2⁸ = 164923243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164923469) 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 3 ways as a sum of consecutive naturals, for example, 6343199 + ... + 6343224.

It is an arithmetic number, because the mean of its divisors is an integer number (44402484).

Almost surely, 2^164923499 is an apocalyptic number.

164923499 is a deficient number, since it is larger than the sum of its proper divisors (12686437).

164923499 is a wasteful number, since it uses less digits than its factorization.

164923499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12686436.

The product of its digits is 419904, while the sum is 47.

The square root of 164923499 is about 12842.2544360404. The cubic root of 164923499 is about 548.3958758393.

It can be divided in two parts, 16492 and 3499, that added together give a palindrome (19991).

The spelling of 164923499 in words is "one hundred sixty-four million, nine hundred twenty-three thousand, four hundred ninety-nine".