131096531 has 2 divisors, whose sum is σ = 131096532. Its totient is φ = 131096530.

The previous prime is 131096491. The next prime is 131096543. The reversal of 131096531 is 135690131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131096531 - 2⁶ = 131096467 is a prime.

It is a super-2 number, since 2×131096531² = 34372600880467922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131096494 and 131096503.

It is not a weakly prime, because it can be changed into another prime (131096431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65548265 + 65548266.

It is an arithmetic number, because the mean of its divisors is an integer number (65548266).

Almost surely, 2^131096531 is an apocalyptic number.

131096531 is a deficient number, since it is larger than the sum of its proper divisors (1).

131096531 is an equidigital number, since it uses as much as digits as its factorization.

131096531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 131096531 is about 11449.7393420112. The cubic root of 131096531 is about 508.0000245417. Note that the first 4 decimals are identical.

The spelling of 131096531 in words is "one hundred thirty-one million, ninety-six thousand, five hundred thirty-one".