131512679 has 2 divisors, whose sum is σ = 131512680. Its totient is φ = 131512678.

The previous prime is 131512657. The next prime is 131512687. The reversal of 131512679 is 976215131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131512679 - 2¹⁶ = 131447143 is a prime.

It is a Chen prime.

It is equal to p_7459181 and since 131512679 and 7459181 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131517679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65756339 + 65756340.

It is an arithmetic number, because the mean of its divisors is an integer number (65756340).

Almost surely, 2^131512679 is an apocalyptic number.

131512679 is a deficient number, since it is larger than the sum of its proper divisors (1).

131512679 is an equidigital number, since it uses as much as digits as its factorization.

131512679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 35.

The square root of 131512679 is about 11467.8977585258. The cubic root of 131512679 is about 508.5369822987.

The spelling of 131512679 in words is "one hundred thirty-one million, five hundred twelve thousand, six hundred seventy-nine".