131312463 has 16 divisors (see below), whose sum is σ = 180182016. Its totient is φ = 85012160.

The previous prime is 131312459. The next prime is 131312483. The reversal of 131312463 is 364213131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131312463 - 2² = 131312459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25570 + ... + 30272.

It is an arithmetic number, because the mean of its divisors is an integer number (11261376).

Almost surely, 2^131312463 is an apocalyptic number.

131312463 is a deficient number, since it is larger than the sum of its proper divisors (48869553).

131312463 is a wasteful number, since it uses less digits than its factorization.

131312463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4974.

The product of its digits is 1296, while the sum is 24.

The square root of 131312463 is about 11459.1650219377. The cubic root of 131312463 is about 508.2787842448.

Adding to 131312463 its reverse (364213131), we get a palindrome (495525594).

The spelling of 131312463 in words is "one hundred thirty-one million, three hundred twelve thousand, four hundred sixty-three".