613135723 has 4 divisors (see below), whose sum is σ = 613189360. Its totient is φ = 613082088.

The previous prime is 613135709. The next prime is 613135781. The reversal of 613135723 is 327531316.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 613135723 - 2²⁵ = 579581291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613135703) 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, 2040 + ... + 35077.

It is an arithmetic number, because the mean of its divisors is an integer number (153297340).

Almost surely, 2^613135723 is an apocalyptic number.

613135723 is a deficient number, since it is larger than the sum of its proper divisors (53637).

613135723 is a wasteful number, since it uses less digits than its factorization.

613135723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53636.

The product of its digits is 11340, while the sum is 31.

The square root of 613135723 is about 24761.5775547520. The cubic root of 613135723 is about 849.5433408648.

The spelling of 613135723 in words is "six hundred thirteen million, one hundred thirty-five thousand, seven hundred twenty-three".