131413391 has 2 divisors, whose sum is σ = 131413392. Its totient is φ = 131413390.

The previous prime is 131413357. The next prime is 131413439. The reversal of 131413391 is 193314131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131413391 - 2⁶ = 131413327 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131413391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131413351) 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, 65706695 + 65706696.

It is an arithmetic number, because the mean of its divisors is an integer number (65706696).

Almost surely, 2^131413391 is an apocalyptic number.

131413391 is a deficient number, since it is larger than the sum of its proper divisors (1).

131413391 is an equidigital number, since it uses as much as digits as its factorization.

131413391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 131413391 is about 11463.5679873240. The cubic root of 131413391 is about 508.4089735212.

The spelling of 131413391 in words is "one hundred thirty-one million, four hundred thirteen thousand, three hundred ninety-one".