1276618113 has 12 divisors (see below), whose sum is σ = 1941057040. Its totient is φ = 806285016.

The previous prime is 1276618081. The next prime is 1276618157. The reversal of 1276618113 is 3118166721.

1276618113 is a `hidden beast` number, since 1 + 27 + 6 + 618 + 1 + 13 = 666.

It is not a de Polignac number, because 1276618113 - 2⁵ = 1276618081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1276617113) 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, 3732631 + ... + 3732972.

Almost surely, 2^1276618113 is an apocalyptic number.

It is an amenable number.

1276618113 is a deficient number, since it is larger than the sum of its proper divisors (664438927).

1276618113 is a wasteful number, since it uses less digits than its factorization.

1276618113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465628 (or 7465625 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 1276618113 is about 35729.7930724487. The cubic root of 1276618113 is about 1084.8099684887.

The spelling of 1276618113 in words is "one billion, two hundred seventy-six million, six hundred eighteen thousand, one hundred thirteen".