613064991 has 32 divisors (see below), whose sum is σ = 1021483008. Its totient is φ = 317737440.

The previous prime is 613064981. The next prime is 613065007. The reversal of 613064991 is 199460316.

It is not a de Polignac number, because 613064991 - 2¹¹ = 613062943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613064981) 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 31 ways as a sum of consecutive naturals, for example, 105036 + ... + 110718.

It is an arithmetic number, because the mean of its divisors is an integer number (31921344).

Almost surely, 2^613064991 is an apocalyptic number.

613064991 is a deficient number, since it is larger than the sum of its proper divisors (408418017).

613064991 is a wasteful number, since it uses less digits than its factorization.

613064991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 613064991 is about 24760.1492523773. The cubic root of 613064991 is about 849.5106715290.

The spelling of 613064991 in words is "six hundred thirteen million, sixty-four thousand, nine hundred ninety-one".