2315849 has 2 divisors, whose sum is σ = 2315850. Its totient is φ = 2315848.

The previous prime is 2315843. The next prime is 2315857. The reversal of 2315849 is 9485132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2050624 + 265225 = 1432^2 + 515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315849 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2315843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157924 + 1157925.

It is an arithmetic number, because the mean of its divisors is an integer number (1157925).

2^2315849 is an apocalyptic number.

It is an amenable number.

2315849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315849 is an equidigital number, since it uses as much as digits as its factorization.

2315849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 2315849 is about 1521.7913786061. The cubic root of 2315849 is about 132.3031180641.

The spelling of 2315849 in words is "two million, three hundred fifteen thousand, eight hundred forty-nine".