131945707 has 2 divisors, whose sum is σ = 131945708. Its totient is φ = 131945706.

The previous prime is 131945683. The next prime is 131945711. The reversal of 131945707 is 707549131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131945707 is a prime.

It is not a weakly prime, because it can be changed into another prime (131945717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65972853 + 65972854.

It is an arithmetic number, because the mean of its divisors is an integer number (65972854).

Almost surely, 2^131945707 is an apocalyptic number.

131945707 is a deficient number, since it is larger than the sum of its proper divisors (1).

131945707 is an equidigital number, since it uses as much as digits as its factorization.

131945707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 131945707 is about 11486.7622505212. The cubic root of 131945707 is about 509.0945191621.

The spelling of 131945707 in words is "one hundred thirty-one million, nine hundred forty-five thousand, seven hundred seven".