1368738431 has 2 divisors, whose sum is σ = 1368738432. Its totient is φ = 1368738430.

The previous prime is 1368738407. The next prime is 1368738451. The reversal of 1368738431 is 1348378631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368738431 is a prime.

It is a super-2 number, since 2×1368738431² = 3746889784992683522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368738451) 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, 684369215 + 684369216.

It is an arithmetic number, because the mean of its divisors is an integer number (684369216).

Almost surely, 2^1368738431 is an apocalyptic number.

1368738431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368738431 is an equidigital number, since it uses as much as digits as its factorization.

1368738431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 1368738431 is about 36996.4651149269. The cubic root of 1368738431 is about 1110.2995244495.

The spelling of 1368738431 in words is "one billion, three hundred sixty-eight million, seven hundred thirty-eight thousand, four hundred thirty-one".