115078409 has 8 divisors (see below), whose sum is σ = 120103560. Its totient is φ = 110123776.

The previous prime is 115078357. The next prime is 115078427. The reversal of 115078409 is 904870511.

It can be written as a sum of positive squares in 4 ways, for example, as 10220809 + 104857600 = 3197^2 + 10240^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115078409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115078429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14282 + ... + 20835.

It is an arithmetic number, because the mean of its divisors is an integer number (15012945).

Almost surely, 2^115078409 is an apocalyptic number.

It is an amenable number.

115078409 is a deficient number, since it is larger than the sum of its proper divisors (5025151).

115078409 is a wasteful number, since it uses less digits than its factorization.

115078409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35259.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 115078409 is about 10727.4605102979. The cubic root of 115078409 is about 486.4049093299.

The spelling of 115078409 in words is "one hundred fifteen million, seventy-eight thousand, four hundred nine".