115211149 has 2 divisors, whose sum is σ = 115211150. Its totient is φ = 115211148.

The previous prime is 115211143. The next prime is 115211167. The reversal of 115211149 is 941112511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92505924 + 22705225 = 9618^2 + 4765^2 .

It is a cyclic number.

It is not a de Polignac number, because 115211149 - 2³ = 115211141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115211141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57605574 + 57605575.

It is an arithmetic number, because the mean of its divisors is an integer number (57605575).

Almost surely, 2^115211149 is an apocalyptic number.

It is an amenable number.

115211149 is a deficient number, since it is larger than the sum of its proper divisors (1).

115211149 is an equidigital number, since it uses as much as digits as its factorization.

115211149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 25.

The square root of 115211149 is about 10733.6456528059. The cubic root of 115211149 is about 486.5918560076.

The spelling of 115211149 in words is "one hundred fifteen million, two hundred eleven thousand, one hundred forty-nine".