2316245209 has 2 divisors, whose sum is σ = 2316245210. Its totient is φ = 2316245208.

The previous prime is 2316245207. The next prime is 2316245231. The reversal of 2316245209 is 9025426132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2053902400 + 262342809 = 45320^2 + 16197^2 .

It is a cyclic number.

It is not a de Polignac number, because 2316245209 - 2¹ = 2316245207 is a prime.

Together with 2316245207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2316245207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1158122604 + 1158122605.

It is an arithmetic number, because the mean of its divisors is an integer number (1158122605).

Almost surely, 2^2316245209 is an apocalyptic number.

It is an amenable number.

2316245209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2316245209 is an equidigital number, since it uses as much as digits as its factorization.

2316245209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2316245209 is about 48127.3852292019. The cubic root of 2316245209 is about 1323.1066269777.

The spelling of 2316245209 in words is "two billion, three hundred sixteen million, two hundred forty-five thousand, two hundred nine".