115251121 has 2 divisors, whose sum is σ = 115251122. Its totient is φ = 115251120.

The previous prime is 115251089. The next prime is 115251127. The reversal of 115251121 is 121152511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72165025 + 43086096 = 8495^2 + 6564^2 .

It is a cyclic number.

It is not a de Polignac number, because 115251121 - 2⁵ = 115251089 is a prime.

It is a super-3 number, since 3×115251121³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (115251127) 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, 57625560 + 57625561.

It is an arithmetic number, because the mean of its divisors is an integer number (57625561).

Almost surely, 2^115251121 is an apocalyptic number.

It is an amenable number.

115251121 is a deficient number, since it is larger than the sum of its proper divisors (1).

115251121 is an equidigital number, since it uses as much as digits as its factorization.

115251121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100, while the sum is 19.

The square root of 115251121 is about 10735.5074868401. The cubic root of 115251121 is about 486.6481231336.

The spelling of 115251121 in words is "one hundred fifteen million, two hundred fifty-one thousand, one hundred twenty-one".