115256213 has 2 divisors, whose sum is σ = 115256214. Its totient is φ = 115256212.

The previous prime is 115256201. The next prime is 115256231. The reversal of 115256213 is 312652511.

Together with next prime (115256231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114875524 + 380689 = 10718^2 + 617^2 .

It is a cyclic number.

It is not a de Polignac number, because 115256213 - 2⁶ = 115256149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115256293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57628106 + 57628107.

It is an arithmetic number, because the mean of its divisors is an integer number (57628107).

Almost surely, 2^115256213 is an apocalyptic number.

It is an amenable number.

115256213 is a deficient number, since it is larger than the sum of its proper divisors (1).

115256213 is an equidigital number, since it uses as much as digits as its factorization.

115256213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 115256213 is about 10735.7446411509. The cubic root of 115256213 is about 486.6552900220.

The spelling of 115256213 in words is "one hundred fifteen million, two hundred fifty-six thousand, two hundred thirteen".