131668367 has 2 divisors, whose sum is σ = 131668368. Its totient is φ = 131668366.

The previous prime is 131668363. The next prime is 131668373. The reversal of 131668367 is 763866131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131668367 - 2² = 131668363 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131668363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65834183 + 65834184.

It is an arithmetic number, because the mean of its divisors is an integer number (65834184).

Almost surely, 2^131668367 is an apocalyptic number.

131668367 is a deficient number, since it is larger than the sum of its proper divisors (1).

131668367 is an equidigital number, since it uses as much as digits as its factorization.

131668367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 131668367 is about 11474.6837429186. The cubic root of 131668367 is about 508.7375760981.

The spelling of 131668367 in words is "one hundred thirty-one million, six hundred sixty-eight thousand, three hundred sixty-seven".