115650121 has 2 divisors, whose sum is σ = 115650122. Its totient is φ = 115650120.

The previous prime is 115650113. The next prime is 115650149. The reversal of 115650121 is 121056511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111070521 + 4579600 = 10539^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 115650121 - 2³ = 115650113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115650092 and 115650101.

It is not a weakly prime, because it can be changed into another prime (115650191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57825060 + 57825061.

It is an arithmetic number, because the mean of its divisors is an integer number (57825061).

Almost surely, 2^115650121 is an apocalyptic number.

It is an amenable number.

115650121 is a deficient number, since it is larger than the sum of its proper divisors (1).

115650121 is an equidigital number, since it uses as much as digits as its factorization.

115650121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 115650121 is about 10754.0746231370. The cubic root of 115650121 is about 487.2090691036.

The spelling of 115650121 in words is "one hundred fifteen million, six hundred fifty thousand, one hundred twenty-one".