613061913 has 8 divisors (see below), whose sum is σ = 818751808. Its totient is φ = 408039984.

The previous prime is 613061857. The next prime is 613062061. The reversal of 613061913 is 319160316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 613061913 - 2¹⁸ = 612799769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613061513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164845 + ... + 168522.

It is an arithmetic number, because the mean of its divisors is an integer number (102343976).

Almost surely, 2^613061913 is an apocalyptic number.

It is an amenable number.

613061913 is a deficient number, since it is larger than the sum of its proper divisors (205689895).

613061913 is a wasteful number, since it uses less digits than its factorization.

613061913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333983.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 613061913 is about 24760.0870959696. The cubic root of 613061913 is about 849.5092498210.

The spelling of 613061913 in words is "six hundred thirteen million, sixty-one thousand, nine hundred thirteen".