315969096181 has 2 divisors, whose sum is σ = 315969096182. Its totient is φ = 315969096180.

The previous prime is 315969096139. The next prime is 315969096203. The reversal of 315969096181 is 181690969513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306284764900 + 9684331281 = 553430^2 + 98409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315969096181 is a prime.

It is a super-2 number, since 2×315969096181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315969396181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157984548090 + 157984548091.

It is an arithmetic number, because the mean of its divisors is an integer number (157984548091).

Almost surely, 2^315969096181 is an apocalyptic number.

It is an amenable number.

315969096181 is a deficient number, since it is larger than the sum of its proper divisors (1).

315969096181 is an equidigital number, since it uses as much as digits as its factorization.

315969096181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3149280, while the sum is 58.

The spelling of 315969096181 in words is "three hundred fifteen billion, nine hundred sixty-nine million, ninety-six thousand, one hundred eighty-one".