2315138064 has 40 divisors (see below), whose sum is σ = 6332585760. Its totient is φ = 726317568.

The previous prime is 2315138051. The next prime is 2315138069. The reversal of 2315138064 is 4608315132.

It is not an unprimeable number, because it can be changed into a prime (2315138069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417774 + ... + 1419405.

It is an arithmetic number, because the mean of its divisors is an integer number (158314644).

Almost surely, 2^2315138064 is an apocalyptic number.

2315138064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2315138064 is an abundant number, since it is smaller than the sum of its proper divisors (4017447696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2315138064 is a wasteful number, since it uses less digits than its factorization.

2315138064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837207 (or 2837201 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2315138064 is about 48115.8816192741. The cubic root of 2315138064 is about 1322.8957822391.

The spelling of 2315138064 in words is "two billion, three hundred fifteen million, one hundred thirty-eight thousand, sixty-four".