131291179 has 2 divisors, whose sum is σ = 131291180. Its totient is φ = 131291178.

The previous prime is 131291137. The next prime is 131291189. The reversal of 131291179 is 971192131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131291179 - 2²¹ = 129194027 is a prime.

It is not a weakly prime, because it can be changed into another prime (131291189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65645589 + 65645590.

It is an arithmetic number, because the mean of its divisors is an integer number (65645590).

Almost surely, 2^131291179 is an apocalyptic number.

131291179 is a deficient number, since it is larger than the sum of its proper divisors (1).

131291179 is an equidigital number, since it uses as much as digits as its factorization.

131291179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 34.

The square root of 131291179 is about 11458.2362953467. The cubic root of 131291179 is about 508.2513210222.

The spelling of 131291179 in words is "one hundred thirty-one million, two hundred ninety-one thousand, one hundred seventy-nine".