164659499 has 4 divisors (see below), whose sum is σ = 167766336. Its totient is φ = 161552664.

The previous prime is 164659493. The next prime is 164659543. The reversal of 164659499 is 994956461.

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 164659499 - 2⁴ = 164659483 is a prime.

It is a super-2 number, since 2×164659499² = 54225501221862002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 3106783 = 164659499 / (1 + 6 + 4 + 6 + 5 + 9 + 4 + 9 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164659499.

It is not an unprimeable number, because it can be changed into a prime (164659493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553339 + ... + 1553444.

It is an arithmetic number, because the mean of its divisors is an integer number (41941584).

Almost surely, 2^164659499 is an apocalyptic number.

164659499 is a deficient number, since it is larger than the sum of its proper divisors (3106837).

164659499 is an equidigital number, since it uses as much as digits as its factorization.

164659499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106836.

The product of its digits is 2099520, while the sum is 53.

The square root of 164659499 is about 12831.9717502806. The cubic root of 164659499 is about 548.1031060989.

The spelling of 164659499 in words is "one hundred sixty-four million, six hundred fifty-nine thousand, four hundred ninety-nine".