115942909 has 4 divisors (see below), whose sum is σ = 116246016. Its totient is φ = 115639804.

The previous prime is 115942903. The next prime is 115942927. The reversal of 115942909 is 909249511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115942909 - 2³ = 115942901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115942901) 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 in 3 ways as a sum of consecutive naturals, for example, 150979 + ... + 151744.

It is an arithmetic number, because the mean of its divisors is an integer number (29061504).

Almost surely, 2^115942909 is an apocalyptic number.

It is an amenable number.

115942909 is a deficient number, since it is larger than the sum of its proper divisors (303107).

115942909 is an equidigital number, since it uses as much as digits as its factorization.

115942909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303106.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 115942909 is about 10767.6789049451. The cubic root of 115942909 is about 487.6198735676.

The spelling of 115942909 in words is "one hundred fifteen million, nine hundred forty-two thousand, nine hundred nine".