115100213 has 2 divisors, whose sum is σ = 115100214. Its totient is φ = 115100212.

The previous prime is 115100197. The next prime is 115100231. The reversal of 115100213 is 312001511.

Together with next prime (115100231) 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., 115068529 + 31684 = 10727^2 + 178^2 .

It is an emirp because it is prime and its reverse (312001511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115100213 - 2⁴ = 115100197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115100263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57550106 + 57550107.

It is an arithmetic number, because the mean of its divisors is an integer number (57550107).

Almost surely, 2^115100213 is an apocalyptic number.

It is an amenable number.

115100213 is a deficient number, since it is larger than the sum of its proper divisors (1).

115100213 is an equidigital number, since it uses as much as digits as its factorization.

115100213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 115100213 is about 10728.4767325096. The cubic root of 115100213 is about 486.4356272348.

Adding to 115100213 its reverse (312001511), we get a palindrome (427101724).

The spelling of 115100213 in words is "one hundred fifteen million, one hundred thousand, two hundred thirteen".