115199213 has 2 divisors, whose sum is σ = 115199214. Its totient is φ = 115199212.

The previous prime is 115199179. The next prime is 115199233. The reversal of 115199213 is 312991511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 52678564 = 7907^2 + 7258^2 .

It is a cyclic number.

It is not a de Polignac number, because 115199213 - 2¹⁴ = 115182829 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115199213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115199233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57599606 + 57599607.

It is an arithmetic number, because the mean of its divisors is an integer number (57599607).

Almost surely, 2^115199213 is an apocalyptic number.

It is an amenable number.

115199213 is a deficient number, since it is larger than the sum of its proper divisors (1).

115199213 is an equidigital number, since it uses as much as digits as its factorization.

115199213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 32.

The square root of 115199213 is about 10733.0896297385. The cubic root of 115199213 is about 486.5750516126.

The spelling of 115199213 in words is "one hundred fifteen million, one hundred ninety-nine thousand, two hundred thirteen".