131896291 has 2 divisors, whose sum is σ = 131896292. Its totient is φ = 131896290.

The previous prime is 131896279. The next prime is 131896301. The reversal of 131896291 is 192698131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131896291 - 2⁹ = 131895779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131896201) 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, 65948145 + 65948146.

It is an arithmetic number, because the mean of its divisors is an integer number (65948146).

Almost surely, 2^131896291 is an apocalyptic number.

131896291 is a deficient number, since it is larger than the sum of its proper divisors (1).

131896291 is an equidigital number, since it uses as much as digits as its factorization.

131896291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 40.

The square root of 131896291 is about 11484.6110513156. The cubic root of 131896291 is about 509.0309562603.

The spelling of 131896291 in words is "one hundred thirty-one million, eight hundred ninety-six thousand, two hundred ninety-one".