1368057631 has 2 divisors, whose sum is σ = 1368057632. Its totient is φ = 1368057630.

The previous prime is 1368057617. The next prime is 1368057637. The reversal of 1368057631 is 1367508631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1368057631 - 2²⁵ = 1334503199 is a prime.

It is a super-2 number, since 2×1368057631² = 3743163363474664322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368057637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684028815 + 684028816.

It is an arithmetic number, because the mean of its divisors is an integer number (684028816).

Almost surely, 2^1368057631 is an apocalyptic number.

1368057631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368057631 is an equidigital number, since it uses as much as digits as its factorization.

1368057631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1368057631 is about 36987.2630915022. The cubic root of 1368057631 is about 1110.1154090970.

The spelling of 1368057631 in words is "one billion, three hundred sixty-eight million, fifty-seven thousand, six hundred thirty-one".