131065331 has 2 divisors, whose sum is σ = 131065332. Its totient is φ = 131065330.

The previous prime is 131065321. The next prime is 131065357. The reversal of 131065331 is 133560131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131065331 - 2²⁶ = 63956467 is a prime.

It is a super-2 number, since 2×131065331² = 34356241980279122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131065297 and 131065306.

It is not a weakly prime, because it can be changed into another prime (131065301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65532665 + 65532666.

It is an arithmetic number, because the mean of its divisors is an integer number (65532666).

Almost surely, 2^131065331 is an apocalyptic number.

131065331 is a deficient number, since it is larger than the sum of its proper divisors (1).

131065331 is an equidigital number, since it uses as much as digits as its factorization.

131065331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 131065331 is about 11448.3767845053. The cubic root of 131065331 is about 507.9597212675.

The spelling of 131065331 in words is "one hundred thirty-one million, sixty-five thousand, three hundred thirty-one".