113447409 has 8 divisors (see below), whose sum is σ = 160161120. Its totient is φ = 71182656.

The previous prime is 113447381. The next prime is 113447413. The reversal of 113447409 is 904744311.

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

It is not a de Polignac number, because 113447409 - 2⁵ = 113447377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113447409.

It is not an unprimeable number, because it can be changed into a prime (113447419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112179 + ... + 1112280.

It is an arithmetic number, because the mean of its divisors is an integer number (20020140).

Almost surely, 2^113447409 is an apocalyptic number.

It is an amenable number.

113447409 is a deficient number, since it is larger than the sum of its proper divisors (46713711).

113447409 is a wasteful number, since it uses less digits than its factorization.

113447409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224479.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 113447409 is about 10651.1693724210. The cubic root of 113447409 is about 484.0960368247.

The spelling of 113447409 in words is "one hundred thirteen million, four hundred forty-seven thousand, four hundred nine".