1368802931 has 4 divisors (see below), whose sum is σ = 1368984792. Its totient is φ = 1368621072.

The previous prime is 1368802879. The next prime is 1368802937. The reversal of 1368802931 is 1392088631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1392088631 = 14489 ⋅96079.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368802931 is a prime.

It is a super-2 number, since 2×1368802931² = 3747242927828381522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368802937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79130 + ... + 94863.

It is an arithmetic number, because the mean of its divisors is an integer number (342246198).

Almost surely, 2^1368802931 is an apocalyptic number.

1368802931 is a deficient number, since it is larger than the sum of its proper divisors (181861).

1368802931 is an equidigital number, since it uses as much as digits as its factorization.

1368802931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181860.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1368802931 is about 36997.3368095597. The cubic root of 1368802931 is about 1110.3169646442.

The spelling of 1368802931 in words is "one billion, three hundred sixty-eight million, eight hundred two thousand, nine hundred thirty-one".