115009405 has 8 divisors (see below), whose sum is σ = 157727232. Its totient is φ = 78863568.

The previous prime is 115009399. The next prime is 115009409. The reversal of 115009405 is 504900511.

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

It is not a de Polignac number, because 115009405 - 2⁷ = 115009277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115009405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115009409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1642957 + ... + 1643026.

It is an arithmetic number, because the mean of its divisors is an integer number (19715904).

Almost surely, 2^115009405 is an apocalyptic number.

It is an amenable number.

115009405 is a deficient number, since it is larger than the sum of its proper divisors (42717827).

115009405 is an equidigital number, since it uses as much as digits as its factorization.

115009405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285995.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 115009405 is about 10724.2437961844. The cubic root of 115009405 is about 486.3076695566.

Adding to 115009405 its reverse (504900511), we get a palindrome (619909916).

The spelling of 115009405 in words is "one hundred fifteen million, nine thousand, four hundred five".