131512963 has 4 divisors (see below), whose sum is σ = 134571448. Its totient is φ = 128454480.

The previous prime is 131512847. The next prime is 131512973. The reversal of 131512963 is 369215131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369215131 = 761 ⋅485171.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131512963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131512973) 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, 1529178 + ... + 1529263.

It is an arithmetic number, because the mean of its divisors is an integer number (33642862).

Almost surely, 2^131512963 is an apocalyptic number.

131512963 is a deficient number, since it is larger than the sum of its proper divisors (3058485).

131512963 is an equidigital number, since it uses as much as digits as its factorization.

131512963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058484.

The product of its digits is 4860, while the sum is 31.

The square root of 131512963 is about 11467.9101409106. The cubic root of 131512963 is about 508.5373483582.

The spelling of 131512963 in words is "one hundred thirty-one million, five hundred twelve thousand, nine hundred sixty-three".