115236109 has 2 divisors, whose sum is σ = 115236110. Its totient is φ = 115236108.

The previous prime is 115236089. The next prime is 115236113. The reversal of 115236109 is 901632511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67322025 + 47914084 = 8205^2 + 6922^2 .

It is a cyclic number.

It is not a de Polignac number, because 115236109 - 2⁹ = 115235597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115236119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57618054 + 57618055.

It is an arithmetic number, because the mean of its divisors is an integer number (57618055).

Almost surely, 2^115236109 is an apocalyptic number.

It is an amenable number.

115236109 is a deficient number, since it is larger than the sum of its proper divisors (1).

115236109 is an equidigital number, since it uses as much as digits as its factorization.

115236109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 115236109 is about 10734.8082889263. The cubic root of 115236109 is about 486.6269928147.

The spelling of 115236109 in words is "one hundred fifteen million, two hundred thirty-six thousand, one hundred nine".