2316071561 has 2 divisors, whose sum is σ = 2316071562. Its totient is φ = 2316071560.

The previous prime is 2316071543. The next prime is 2316071599. The reversal of 2316071561 is 1651706132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1547950336 + 768121225 = 39344^2 + 27715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2316071561 - 2⁶ = 2316071497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2316071521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1158035780 + 1158035781.

It is an arithmetic number, because the mean of its divisors is an integer number (1158035781).

Almost surely, 2^2316071561 is an apocalyptic number.

It is an amenable number.

2316071561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2316071561 is an equidigital number, since it uses as much as digits as its factorization.

2316071561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 2316071561 is about 48125.5811497378. The cubic root of 2316071561 is about 1323.0735618888.

Adding to 2316071561 its reverse (1651706132), we get a palindrome (3967777693).

The spelling of 2316071561 in words is "two billion, three hundred sixteen million, seventy-one thousand, five hundred sixty-one".