131804567 has 2 divisors, whose sum is σ = 131804568. Its totient is φ = 131804566.

The previous prime is 131804509. The next prime is 131804597. The reversal of 131804567 is 765408131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131804567 - 2¹⁰ = 131803543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131804597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65902283 + 65902284.

It is an arithmetic number, because the mean of its divisors is an integer number (65902284).

Almost surely, 2^131804567 is an apocalyptic number.

131804567 is a deficient number, since it is larger than the sum of its proper divisors (1).

131804567 is an equidigital number, since it uses as much as digits as its factorization.

131804567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 131804567 is about 11480.6170130355. The cubic root of 131804567 is about 508.9129312513.

The spelling of 131804567 in words is "one hundred thirty-one million, eight hundred four thousand, five hundred sixty-seven".