2315438161 has 3 divisors (see below), whose sum is σ = 2315486281. Its totient is φ = 2315390042.

The previous prime is 2315438149. The next prime is 2315438179. The reversal of 2315438161 is 1618345132.

The square root of 2315438161 is 48119.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2315438161 - 2¹³ = 2315429969 is a prime.

It is a super-2 number, since 2×2315438161² = 10722507754830123842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315438761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24060 + ... + 72178.

Almost surely, 2^2315438161 is an apocalyptic number.

2315438161 is the 48119-th square number.

2315438161 is the 24060-th centered octagonal number.

It is an amenable number.

2315438161 is a deficient number, since it is larger than the sum of its proper divisors (48120).

2315438161 is an frugal number, since it uses more digits than its factorization.

2315438161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96238 (or 48119 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The cubic root of 2315438161 is about 1322.9529393636.

The spelling of 2315438161 in words is "two billion, three hundred fifteen million, four hundred thirty-eight thousand, one hundred sixty-one".