115792021 has 2 divisors, whose sum is σ = 115792022. Its totient is φ = 115792020.

The previous prime is 115792009. The next prime is 115792063. The reversal of 115792021 is 120297511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78411025 + 37380996 = 8855^2 + 6114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115792021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115792921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57896010 + 57896011.

It is an arithmetic number, because the mean of its divisors is an integer number (57896011).

Almost surely, 2^115792021 is an apocalyptic number.

It is an amenable number.

115792021 is a deficient number, since it is larger than the sum of its proper divisors (1).

115792021 is an equidigital number, since it uses as much as digits as its factorization.

115792021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 115792021 is about 10760.6700999520. The cubic root of 115792021 is about 487.4082523813.

The spelling of 115792021 in words is "one hundred fifteen million, seven hundred ninety-two thousand, twenty-one".