2315117165 has 4 divisors (see below), whose sum is σ = 2778140604. Its totient is φ = 1852093728.

The previous prime is 2315117099. The next prime is 2315117173. The reversal of 2315117165 is 5617115132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1655757481 + 659359684 = 40691^2 + 25678^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315117165 - 2¹² = 2315113069 is a prime.

It is a super-3 number, since 3×2315117165³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231511712 + ... + 231511721.

It is an arithmetic number, because the mean of its divisors is an integer number (694535151).

Almost surely, 2^2315117165 is an apocalyptic number.

It is an amenable number.

2315117165 is a deficient number, since it is larger than the sum of its proper divisors (463023439).

2315117165 is an equidigital number, since it uses as much as digits as its factorization.

2315117165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463023438.

The product of its digits is 6300, while the sum is 32.

The square root of 2315117165 is about 48115.6644451680. The cubic root of 2315117165 is about 1322.8918015864.

The spelling of 2315117165 in words is "two billion, three hundred fifteen million, one hundred seventeen thousand, one hundred sixty-five".