2315122045 has 4 divisors (see below), whose sum is σ = 2778146460. Its totient is φ = 1852097632.

The previous prime is 2315122009. The next prime is 2315122057. The reversal of 2315122045 is 5402215132.

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 762919641 + 1552202404 = 27621^2 + 39398^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315122045 - 2¹⁵ = 2315089277 is a prime.

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, 231512200 + ... + 231512209.

It is an arithmetic number, because the mean of its divisors is an integer number (694536615).

Almost surely, 2^2315122045 is an apocalyptic number.

It is an amenable number.

2315122045 is a deficient number, since it is larger than the sum of its proper divisors (463024415).

2315122045 is an equidigital number, since it uses as much as digits as its factorization.

2315122045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463024414.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2315122045 is about 48115.7151562772. The cubic root of 2315122045 is about 1322.8927310868.

Adding to 2315122045 its reverse (5402215132), we get a palindrome (7717337177).

The spelling of 2315122045 in words is "two billion, three hundred fifteen million, one hundred twenty-two thousand, forty-five".