1316776131 has 48 divisors (see below), whose sum is σ = 2133462240. Its totient is φ = 775680000.

The previous prime is 1316776127. The next prime is 1316776183.

It is a happy number.

1316776131 is a `hidden beast` number, since 1 + 31 + 6 + 7 + 7 + 613 + 1 = 666.

1316776131 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1316776131 - 2² = 1316776127 is a prime.

It is a super-2 number, since 2×1316776131² = 3467798758342658322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1316776031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1627255 + ... + 1628063.

It is an arithmetic number, because the mean of its divisors is an integer number (44447130).

Almost surely, 2^1316776131 is an apocalyptic number.

1316776131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1316776131 is a deficient number, since it is larger than the sum of its proper divisors (816686109).

1316776131 is a wasteful number, since it uses less digits than its factorization.

1316776131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268 (or 1265 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 1316776131 is about 36287.4100894511. The cubic root of 1316776131 is about 1096.0675371186.

It can be divided in two parts, 13167 and 76131, that added together give a palindrome (89298).

The spelling of 1316776131 in words is "one billion, three hundred sixteen million, seven hundred seventy-six thousand, one hundred thirty-one".