2315117143 has 4 divisors (see below), whose sum is σ = 2315471368. Its totient is φ = 2314762920.

The previous prime is 2315117099. The next prime is 2315117173. The reversal of 2315117143 is 3417115132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315117143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315117173) by changing a digit.

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, 167121 + ... + 180442.

It is an arithmetic number, because the mean of its divisors is an integer number (578867842).

Almost surely, 2^2315117143 is an apocalyptic number.

2315117143 is a deficient number, since it is larger than the sum of its proper divisors (354225).

2315117143 is an equidigital number, since it uses as much as digits as its factorization.

2315117143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354224.

The product of its digits is 2520, while the sum is 28.

The square root of 2315117143 is about 48115.6642165522. The cubic root of 2315117143 is about 1322.8917973960.

The spelling of 2315117143 in words is "two billion, three hundred fifteen million, one hundred seventeen thousand, one hundred forty-three".