315501534197 has 2 divisors, whose sum is σ = 315501534198. Its totient is φ = 315501534196.

The previous prime is 315501534143. The next prime is 315501534199. The reversal of 315501534197 is 791435105513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289884251281 + 25617282916 = 538409^2 + 160054^2 .

It is a cyclic number.

It is not a de Polignac number, because 315501534197 - 2¹⁰ = 315501533173 is a prime.

Together with 315501534199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315501534199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157750767098 + 157750767099.

It is an arithmetic number, because the mean of its divisors is an integer number (157750767099).

Almost surely, 2^315501534197 is an apocalyptic number.

It is an amenable number.

315501534197 is a deficient number, since it is larger than the sum of its proper divisors (1).

315501534197 is an equidigital number, since it uses as much as digits as its factorization.

315501534197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 44.

The spelling of 315501534197 in words is "three hundred fifteen billion, five hundred one million, five hundred thirty-four thousand, one hundred ninety-seven".