1376310681 has 12 divisors (see below), whose sum is σ = 2056556580. Its totient is φ = 885900960.

The previous prime is 1376310671. The next prime is 1376310709. The reversal of 1376310681 is 1860136731.

1376310681 is a `hidden beast` number, since 13 + 7 + 631 + 0 + 6 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 931775625 + 444535056 = 30525^2 + 21084^2 .

It is not a de Polignac number, because 1376310681 - 2⁷ = 1376310553 is a prime.

It is a super-2 number, since 2×1376310681² = 3788462181269367522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1376310601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2636350 + ... + 2636871.

It is an arithmetic number, because the mean of its divisors is an integer number (171379715).

Almost surely, 2^1376310681 is an apocalyptic number.

It is an amenable number.

1376310681 is a deficient number, since it is larger than the sum of its proper divisors (680245899).

1376310681 is a wasteful number, since it uses less digits than its factorization.

1376310681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273256 (or 5273253 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1376310681 is about 37098.6614448554. The cubic root of 1376310681 is about 1112.3432577389.

The spelling of 1376310681 in words is "one billion, three hundred seventy-six million, three hundred ten thousand, six hundred eighty-one".