2315137887157 has 4 divisors (see below), whose sum is σ = 2325247659820. Its totient is φ = 2305028114496.

The previous prime is 2315137887121. The next prime is 2315137887191. The reversal of 2315137887157 is 7517887315132.

2315137887157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2180350513201 + 134787373956 = 1476601^2 + 367134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315137887157 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 (2315137887197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5054885988 + ... + 5054886445.

It is an arithmetic number, because the mean of its divisors is an integer number (581311914955).

Almost surely, 2^{2315137887157} is an apocalyptic number.

It is an amenable number.

2315137887157 is a deficient number, since it is larger than the sum of its proper divisors (10109772663).

2315137887157 is a wasteful number, since it uses less digits than its factorization.

2315137887157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109772662.

The product of its digits is 9878400, while the sum is 58.

The spelling of 2315137887157 in words is "two trillion, three hundred fifteen billion, one hundred thirty-seven million, eight hundred eighty-seven thousand, one hundred fifty-seven".