115043009 has 2 divisors, whose sum is σ = 115043010. Its totient is φ = 115043008.

The previous prime is 115042997. The next prime is 115043041. The reversal of 115043009 is 900340511.

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., 114918400 + 124609 = 10720^2 + 353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115043009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (115043099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57521504 + 57521505.

It is an arithmetic number, because the mean of its divisors is an integer number (57521505).

Almost surely, 2^115043009 is an apocalyptic number.

It is an amenable number.

115043009 is a deficient number, since it is larger than the sum of its proper divisors (1).

115043009 is an equidigital number, since it uses as much as digits as its factorization.

115043009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 115043009 is about 10725.8104122719. The cubic root of 115043009 is about 486.3550288474.

The spelling of 115043009 in words is "one hundred fifteen million, forty-three thousand, nine".