131078971 has 2 divisors, whose sum is σ = 131078972. Its totient is φ = 131078970.

The previous prime is 131078957. The next prime is 131079029. The reversal of 131078971 is 179870131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131078971 - 2⁵ = 131078939 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 131078971.

It is not a weakly prime, because it can be changed into another prime (131078951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65539485 + 65539486.

It is an arithmetic number, because the mean of its divisors is an integer number (65539486).

Almost surely, 2^131078971 is an apocalyptic number.

131078971 is a deficient number, since it is larger than the sum of its proper divisors (1).

131078971 is an equidigital number, since it uses as much as digits as its factorization.

131078971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 131078971 is about 11448.9724866470. The cubic root of 131078971 is about 507.9773418191.

The spelling of 131078971 in words is "one hundred thirty-one million, seventy-eight thousand, nine hundred seventy-one".