115244009 has 2 divisors, whose sum is σ = 115244010. Its totient is φ = 115244008.

The previous prime is 115243951. The next prime is 115244027. The reversal of 115244009 is 900442511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60528400 + 54715609 = 7780^2 + 7397^2 .

It is a cyclic number.

It is not a de Polignac number, because 115244009 - 2⁸ = 115243753 is a prime.

It is a super-2 number, since 2×115244009² = 26562363220784162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115244039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57622004 + 57622005.

It is an arithmetic number, because the mean of its divisors is an integer number (57622005).

Almost surely, 2^115244009 is an apocalyptic number.

It is an amenable number.

115244009 is a deficient number, since it is larger than the sum of its proper divisors (1).

115244009 is an equidigital number, since it uses as much as digits as its factorization.

115244009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 115244009 is about 10735.1762444778. The cubic root of 115244009 is about 486.6381127823.

The spelling of 115244009 in words is "one hundred fifteen million, two hundred forty-four thousand, nine".