131403911 has 2 divisors, whose sum is σ = 131403912. Its totient is φ = 131403910.

The previous prime is 131403871. The next prime is 131403953. The reversal of 131403911 is 119304131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131403911 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131403011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701955 + 65701956.

It is an arithmetic number, because the mean of its divisors is an integer number (65701956).

Almost surely, 2^131403911 is an apocalyptic number.

131403911 is a deficient number, since it is larger than the sum of its proper divisors (1).

131403911 is an equidigital number, since it uses as much as digits as its factorization.

131403911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 131403911 is about 11463.1544960364. The cubic root of 131403911 is about 508.3967478951.

The spelling of 131403911 in words is "one hundred thirty-one million, four hundred three thousand, nine hundred eleven".