2115349913 has 2 divisors, whose sum is σ = 2115349914. Its totient is φ = 2115349912.

The previous prime is 2115349909. The next prime is 2115349919. The reversal of 2115349913 is 3199435112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2115264064 + 85849 = 45992^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115349913 - 2² = 2115349909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2115349919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057674956 + 1057674957.

It is an arithmetic number, because the mean of its divisors is an integer number (1057674957).

Almost surely, 2^2115349913 is an apocalyptic number.

It is an amenable number.

2115349913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115349913 is an equidigital number, since it uses as much as digits as its factorization.

2115349913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 2115349913 is about 45992.9332941486. The cubic root of 2115349913 is about 1283.6917171607.

The spelling of 2115349913 in words is "two billion, one hundred fifteen million, three hundred forty-nine thousand, nine hundred thirteen".