2315215205 has 4 divisors (see below), whose sum is σ = 2778258252. Its totient is φ = 1852172160.

The previous prime is 2315215169. The next prime is 2315215211. The reversal of 2315215205 is 5025125132.

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 1762824196 + 552391009 = 41986^2 + 23503^2 .

It is not a de Polignac number, because 2315215205 - 2³⁰ = 1241473381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231521516 + ... + 231521525.

It is an arithmetic number, because the mean of its divisors is an integer number (694564563).

Almost surely, 2^2315215205 is an apocalyptic number.

It is an amenable number.

2315215205 is a deficient number, since it is larger than the sum of its proper divisors (463043047).

2315215205 is an equidigital number, since it uses as much as digits as its factorization.

2315215205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463043046.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2315215205 is about 48116.6832294164. The cubic root of 2315215205 is about 1322.9104751526.

The spelling of 2315215205 in words is "two billion, three hundred fifteen million, two hundred fifteen thousand, two hundred five".