131896511 has 4 divisors (see below), whose sum is σ = 131921712. Its totient is φ = 131871312.

The previous prime is 131896507. The next prime is 131896529. The reversal of 131896511 is 115698131.

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: 115698131 = 89 ⋅1299979.

It is a cyclic number.

It is not a de Polignac number, because 131896511 - 2² = 131896507 is a prime.

It is a super-2 number, since 2×131896511² = 34793379227946242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131896561) 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, 1475 + ... + 16308.

It is an arithmetic number, because the mean of its divisors is an integer number (32980428).

Almost surely, 2^131896511 is an apocalyptic number.

131896511 is a deficient number, since it is larger than the sum of its proper divisors (25201).

131896511 is an equidigital number, since it uses as much as digits as its factorization.

131896511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25200.

The product of its digits is 6480, while the sum is 35.

The square root of 131896511 is about 11484.6206293460. The cubic root of 131896511 is about 509.0312392775.

The spelling of 131896511 in words is "one hundred thirty-one million, eight hundred ninety-six thousand, five hundred eleven".