613164605 has 4 divisors (see below), whose sum is σ = 735797532. Its totient is φ = 490531680.

The previous prime is 613164581. The next prime is 613164611. The reversal of 613164605 is 506461316.

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 351825049 + 261339556 = 18757^2 + 16166^2 .

It is not a de Polignac number, because 613164605 - 2¹⁰ = 613163581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 61316456 + ... + 61316465.

It is an arithmetic number, because the mean of its divisors is an integer number (183949383).

Almost surely, 2^613164605 is an apocalyptic number.

It is an amenable number.

613164605 is a deficient number, since it is larger than the sum of its proper divisors (122632927).

613164605 is a wasteful number, since it uses less digits than its factorization.

613164605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122632926.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 613164605 is about 24762.1607498215. The cubic root of 613164605 is about 849.5566800134.

The spelling of 613164605 in words is "six hundred thirteen million, one hundred sixty-four thousand, six hundred five".