115525121 has 2 divisors, whose sum is σ = 115525122. Its totient is φ = 115525120.

The previous prime is 115525103. The next prime is 115525139. The reversal of 115525121 is 121525511.

It is a balanced prime because it is at equal distance from previous prime (115525103) and next prime (115525139).

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 46036225 = 8336^2 + 6785^2 .

It is a cyclic number.

It is not a de Polignac number, because 115525121 - 2⁶ = 115525057 is a prime.

It is not a weakly prime, because it can be changed into another prime (115525141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57762560 + 57762561.

It is an arithmetic number, because the mean of its divisors is an integer number (57762561).

Almost surely, 2^115525121 is an apocalyptic number.

It is an amenable number.

115525121 is a deficient number, since it is larger than the sum of its proper divisors (1).

115525121 is an equidigital number, since it uses as much as digits as its factorization.

115525121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500, while the sum is 23.

The square root of 115525121 is about 10748.2613012524. The cubic root of 115525121 is about 487.0334731253.

The spelling of 115525121 in words is "one hundred fifteen million, five hundred twenty-five thousand, one hundred twenty-one".