115025909 has 2 divisors, whose sum is σ = 115025910. Its totient is φ = 115025908.

The previous prime is 115025899. The next prime is 115025917. The reversal of 115025909 is 909520511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96963409 + 18062500 = 9847^2 + 4250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115025909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115025969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57512954 + 57512955.

It is an arithmetic number, because the mean of its divisors is an integer number (57512955).

Almost surely, 2^115025909 is an apocalyptic number.

It is an amenable number.

115025909 is a deficient number, since it is larger than the sum of its proper divisors (1).

115025909 is an equidigital number, since it uses as much as digits as its factorization.

115025909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 115025909 is about 10725.0132400851. The cubic root of 115025909 is about 486.3309303728.

The spelling of 115025909 in words is "one hundred fifteen million, twenty-five thousand, nine hundred nine".