613523013 has 24 divisors (see below), whose sum is σ = 878855040. Its totient is φ = 380582400.

The previous prime is 613523003. The next prime is 613523017. The reversal of 613523013 is 310325316.

It is a happy number.

It is not a de Polignac number, because 613523013 - 2⁴ = 613522997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613523017) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 73188 + ... + 81138.

It is an arithmetic number, because the mean of its divisors is an integer number (36618960).

Almost surely, 2^613523013 is an apocalyptic number.

It is an amenable number.

613523013 is a deficient number, since it is larger than the sum of its proper divisors (265332027).

613523013 is a wasteful number, since it uses less digits than its factorization.

613523013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8060 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 613523013 is about 24769.3967023826. The cubic root of 613523013 is about 849.7221758692.

Adding to 613523013 its reverse (310325316), we get a palindrome (923848329).

The spelling of 613523013 in words is "six hundred thirteen million, five hundred twenty-three thousand, thirteen".