115183021 has 2 divisors, whose sum is σ = 115183022. Its totient is φ = 115183020.

The previous prime is 115183009. The next prime is 115183043. The reversal of 115183021 is 120381511.

It is an a-pointer prime, because the next prime (115183043) can be obtained adding 115183021 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76370121 + 38812900 = 8739^2 + 6230^2 .

It is a cyclic number.

It is not a de Polignac number, because 115183021 - 2¹⁷ = 115051949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115182983 and 115183001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115183051) 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, 57591510 + 57591511.

It is an arithmetic number, because the mean of its divisors is an integer number (57591511).

Almost surely, 2^115183021 is an apocalyptic number.

It is an amenable number.

115183021 is a deficient number, since it is larger than the sum of its proper divisors (1).

115183021 is an equidigital number, since it uses as much as digits as its factorization.

115183021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 115183021 is about 10732.3353003901. The cubic root of 115183021 is about 486.5522534464.

The spelling of 115183021 in words is "one hundred fifteen million, one hundred eighty-three thousand, twenty-one".