131116456 has 16 divisors (see below), whose sum is σ = 252488340. Its totient is φ = 63786240.

The previous prime is 131116441. The next prime is 131116457. The reversal of 131116456 is 654611131.

It can be written as a sum of positive squares in 2 ways, for example, as 128459556 + 2656900 = 11334^2 + 1630^2 .

It is a super-3 number, since 3×131116456³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131116457) 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, 221185 + ... + 221776.

Almost surely, 2^131116456 is an apocalyptic number.

It is an amenable number.

131116456 is a deficient number, since it is larger than the sum of its proper divisors (121371884).

131116456 is a wasteful number, since it uses less digits than its factorization.

131116456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443004 (or 443000 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 131116456 is about 11450.6094160966. The cubic root of 131116456 is about 508.0257597453.

Adding to 131116456 its reverse (654611131), we get a palindrome (785727587).

The spelling of 131116456 in words is "one hundred thirty-one million, one hundred sixteen thousand, four hundred fifty-six".