2315399 has 2 divisors, whose sum is σ = 2315400. Its totient is φ = 2315398.

The previous prime is 2315371. The next prime is 2315407. The reversal of 2315399 is 9935132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315399 is a prime.

It is a super-5 number, since 5×2315399⁵ (a number of 33 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157699 + 1157700.

It is an arithmetic number, because the mean of its divisors is an integer number (1157700).

2^2315399 is an apocalyptic number.

2315399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315399 is an equidigital number, since it uses as much as digits as its factorization.

2315399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 32.

The square root of 2315399 is about 1521.6435193566. The cubic root of 2315399 is about 132.2945480955.

The spelling of 2315399 in words is "two million, three hundred fifteen thousand, three hundred ninety-nine".