131665367 has 2 divisors, whose sum is σ = 131665368. Its totient is φ = 131665366.

The previous prime is 131665361. The next prime is 131665397. The reversal of 131665367 is 763566131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131665367 - 2⁸ = 131665111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131665367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131665361) 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, 65832683 + 65832684.

It is an arithmetic number, because the mean of its divisors is an integer number (65832684).

Almost surely, 2^131665367 is an apocalyptic number.

131665367 is a deficient number, since it is larger than the sum of its proper divisors (1).

131665367 is an equidigital number, since it uses as much as digits as its factorization.

131665367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 131665367 is about 11474.5530196169. The cubic root of 131665367 is about 508.7337122890.

The spelling of 131665367 in words is "one hundred thirty-one million, six hundred sixty-five thousand, three hundred sixty-seven".