2315611591 has 2 divisors, whose sum is σ = 2315611592. Its totient is φ = 2315611590.

The previous prime is 2315611553. The next prime is 2315611631. The reversal of 2315611591 is 1951165132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315611591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315611541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157805795 + 1157805796.

It is an arithmetic number, because the mean of its divisors is an integer number (1157805796).

Almost surely, 2^2315611591 is an apocalyptic number.

2315611591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315611591 is an equidigital number, since it uses as much as digits as its factorization.

2315611591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 34.

The square root of 2315611591 is about 48120.8020610629. The cubic root of 2315611591 is about 1322.9859689652.

The spelling of 2315611591 in words is "two billion, three hundred fifteen million, six hundred eleven thousand, five hundred ninety-one".