164323613 has 4 divisors (see below), whose sum is σ = 168331548. Its totient is φ = 160315680.

The previous prime is 164323589. The next prime is 164323619. The reversal of 164323613 is 316323461.

164323613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2474329 + 161849284 = 1573^2 + 12722^2 .

It is a cyclic number.

It is not a de Polignac number, because 164323613 - 2¹² = 164319517 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 (164323619) 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, 2003906 + ... + 2003987.

It is an arithmetic number, because the mean of its divisors is an integer number (42082887).

Almost surely, 2^164323613 is an apocalyptic number.

It is an amenable number.

164323613 is a deficient number, since it is larger than the sum of its proper divisors (4007935).

164323613 is an equidigital number, since it uses as much as digits as its factorization.

164323613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007934.

The product of its digits is 7776, while the sum is 29.

The square root of 164323613 is about 12818.8772129231. The cubic root of 164323613 is about 547.7301637867.

The spelling of 164323613 in words is "one hundred sixty-four million, three hundred twenty-three thousand, six hundred thirteen".