164502869 has 4 divisors (see below), whose sum is σ = 164707020. Its totient is φ = 164298720.

The previous prime is 164502859. The next prime is 164502881. The reversal of 164502869 is 968205461.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 155127025 + 9375844 = 12455^2 + 3062^2 .

It is a cyclic number.

It is not a de Polignac number, because 164502869 - 2¹⁶ = 164437333 is a prime.

It is a super-2 number, since 2×164502869² = 54122387818462322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164502859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100862 + ... + 102479.

It is an arithmetic number, because the mean of its divisors is an integer number (41176755).

Almost surely, 2^164502869 is an apocalyptic number.

It is an amenable number.

164502869 is a deficient number, since it is larger than the sum of its proper divisors (204151).

164502869 is an equidigital number, since it uses as much as digits as its factorization.

164502869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204150.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 164502869 is about 12825.8671831576. The cubic root of 164502869 is about 547.9292592099.

The spelling of 164502869 in words is "one hundred sixty-four million, five hundred two thousand, eight hundred sixty-nine".