115103309 has 2 divisors, whose sum is σ = 115103310. Its totient is φ = 115103308.

The previous prime is 115103299. The next prime is 115103323. The reversal of 115103309 is 903301511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62758084 + 52345225 = 7922^2 + 7235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115103309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115103369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57551654 + 57551655.

It is an arithmetic number, because the mean of its divisors is an integer number (57551655).

Almost surely, 2^115103309 is an apocalyptic number.

It is an amenable number.

115103309 is a deficient number, since it is larger than the sum of its proper divisors (1).

115103309 is an equidigital number, since it uses as much as digits as its factorization.

115103309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 115103309 is about 10728.6210204294. The cubic root of 115103309 is about 486.4399886261.

The spelling of 115103309 in words is "one hundred fifteen million, one hundred three thousand, three hundred nine".