2152315117 has 4 divisors (see below), whose sum is σ = 2265594880. Its totient is φ = 2039035356.

The previous prime is 2152315111. The next prime is 2152315157. The reversal of 2152315117 is 7115132512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152315117 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 (2152315111) 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, 56639853 + ... + 56639890.

It is an arithmetic number, because the mean of its divisors is an integer number (566398720).

Almost surely, 2^2152315117 is an apocalyptic number.

It is an amenable number.

2152315117 is a deficient number, since it is larger than the sum of its proper divisors (113279763).

2152315117 is a wasteful number, since it uses less digits than its factorization.

2152315117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113279762.

The product of its digits is 2100, while the sum is 28.

The square root of 2152315117 is about 46393.0503092866. The cubic root of 2152315117 is about 1291.1259758234.

Adding to 2152315117 its reverse (7115132512), we get a palindrome (9267447629).

The spelling of 2152315117 in words is "two billion, one hundred fifty-two million, three hundred fifteen thousand, one hundred seventeen".