115553009 has 16 divisors (see below), whose sum is σ = 136975104. Its totient is φ = 96096000.

The previous prime is 115552981. The next prime is 115553033. The reversal of 115553009 is 900355511.

It is a happy number.

It is not a de Polignac number, because 115553009 - 2¹² = 115548913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115553059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12584 + ... + 19734.

It is an arithmetic number, because the mean of its divisors is an integer number (8560944).

Almost surely, 2^115553009 is an apocalyptic number.

It is an amenable number.

115553009 is a deficient number, since it is larger than the sum of its proper divisors (21422095).

115553009 is a wasteful number, since it uses less digits than its factorization.

115553009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288.

The product of its (nonzero) digits is 3375, while the sum is 29.

The square root of 115553009 is about 10749.5585490754. The cubic root of 115553009 is about 487.0726602637.

The spelling of 115553009 in words is "one hundred fifteen million, five hundred fifty-three thousand, nine".