115274021 has 2 divisors, whose sum is σ = 115274022. Its totient is φ = 115274020.

The previous prime is 115274017. The next prime is 115274053. The reversal of 115274021 is 120472511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 34093921 = 9010^2 + 5839^2 .

It is a cyclic number.

It is not a de Polignac number, because 115274021 - 2² = 115274017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115274011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57637010 + 57637011.

It is an arithmetic number, because the mean of its divisors is an integer number (57637011).

Almost surely, 2^115274021 is an apocalyptic number.

It is an amenable number.

115274021 is a deficient number, since it is larger than the sum of its proper divisors (1).

115274021 is an equidigital number, since it uses as much as digits as its factorization.

115274021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 115274021 is about 10736.5739880094. The cubic root of 115274021 is about 486.6803527666.

The spelling of 115274021 in words is "one hundred fifteen million, two hundred seventy-four thousand, twenty-one".