131056151617 has 2 divisors, whose sum is σ = 131056151618. Its totient is φ = 131056151616.

The previous prime is 131056151573. The next prime is 131056151663. The reversal of 131056151617 is 716151650131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79547125681 + 51509025936 = 282041^2 + 226956^2 .

It is a cyclic number.

It is not a de Polignac number, because 131056151617 - 2²³ = 131047763009 is a prime.

It is not a weakly prime, because it can be changed into another prime (131056151117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65528075808 + 65528075809.

It is an arithmetic number, because the mean of its divisors is an integer number (65528075809).

Almost surely, 2^131056151617 is an apocalyptic number.

It is an amenable number.

131056151617 is a deficient number, since it is larger than the sum of its proper divisors (1).

131056151617 is an equidigital number, since it uses as much as digits as its factorization.

131056151617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 37.

The spelling of 131056151617 in words is "one hundred thirty-one billion, fifty-six million, one hundred fifty-one thousand, six hundred seventeen".