164508613 has 4 divisors (see below), whose sum is σ = 166105888. Its totient is φ = 162911340.

The previous prime is 164508607. The next prime is 164508649. The reversal of 164508613 is 316805461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164508613 - 2¹⁷ = 164377541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164508313) 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, 798483 + ... + 798688.

It is an arithmetic number, because the mean of its divisors is an integer number (41526472).

Almost surely, 2^164508613 is an apocalyptic number.

It is an amenable number.

164508613 is a deficient number, since it is larger than the sum of its proper divisors (1597275).

164508613 is a wasteful number, since it uses less digits than its factorization.

164508613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597274.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 164508613 is about 12826.0911036839. The cubic root of 164508613 is about 547.9356365436.

The spelling of 164508613 in words is "one hundred sixty-four million, five hundred eight thousand, six hundred thirteen".