131396047 has 2 divisors, whose sum is σ = 131396048. Its totient is φ = 131396046.

The previous prime is 131395997. The next prime is 131396053. The reversal of 131396047 is 740693131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131396047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131396087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65698023 + 65698024.

It is an arithmetic number, because the mean of its divisors is an integer number (65698024).

Almost surely, 2^131396047 is an apocalyptic number.

131396047 is a deficient number, since it is larger than the sum of its proper divisors (1).

131396047 is an equidigital number, since it uses as much as digits as its factorization.

131396047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 131396047 is about 11462.8114788650. The cubic root of 131396047 is about 508.3866058535.

The spelling of 131396047 in words is "one hundred thirty-one million, three hundred ninety-six thousand, forty-seven".