2315117140 has 96 divisors (see below), whose sum is σ = 5683636224. Its totient is φ = 775733760.

The previous prime is 2315117099. The next prime is 2315117173. The reversal of 2315117140 is 417115132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1476637 + ... + 1478203.

It is an arithmetic number, because the mean of its divisors is an integer number (59204544).

Almost surely, 2^2315117140 is an apocalyptic number.

2315117140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2315117140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2841818112).

2315117140 is an abundant number, since it is smaller than the sum of its proper divisors (3368519084).

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

2315117140 is a wasteful number, since it uses less digits than its factorization.

2315117140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 2315117140 is about 48115.6641853773. The cubic root of 2315117140 is about 1322.8917968246.

The spelling of 2315117140 in words is "two billion, three hundred fifteen million, one hundred seventeen thousand, one hundred forty".