1308113591 has 2 divisors, whose sum is σ = 1308113592. Its totient is φ = 1308113590.

The previous prime is 1308113557. The next prime is 1308113593. The reversal of 1308113591 is 1953118031.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1953118031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1308113591 is a prime.

It is a super-2 number, since 2×1308113591² = 3422322333917830562, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1308113593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1308113593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654056795 + 654056796.

It is an arithmetic number, because the mean of its divisors is an integer number (654056796).

Almost surely, 2^1308113591 is an apocalyptic number.

1308113591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308113591 is an equidigital number, since it uses as much as digits as its factorization.

1308113591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1308113591 is about 36167.8530051204. The cubic root of 1308113591 is about 1093.6587181464.

The spelling of 1308113591 in words is "one billion, three hundred eight million, one hundred thirteen thousand, five hundred ninety-one".