613006591 has 2 divisors, whose sum is σ = 613006592. Its totient is φ = 613006590.

The previous prime is 613006579. The next prime is 613006601. The reversal of 613006591 is 195600316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613006591 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613066591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306503295 + 306503296.

It is an arithmetic number, because the mean of its divisors is an integer number (306503296).

Almost surely, 2^613006591 is an apocalyptic number.

613006591 is a deficient number, since it is larger than the sum of its proper divisors (1).

613006591 is an equidigital number, since it uses as much as digits as its factorization.

613006591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 613006591 is about 24758.9699099135. The cubic root of 613006591 is about 849.4836961407.

The spelling of 613006591 in words is "six hundred thirteen million, six thousand, five hundred ninety-one".