113447309 has 8 divisors (see below), whose sum is σ = 120516000. Its totient is φ = 106488432.

The previous prime is 113447303. The next prime is 113447317. The reversal of 113447309 is 903744311.

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

It is a cyclic number.

It is not a de Polignac number, because 113447309 - 2⁸ = 113447053 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 (113447303) 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, 25319 + ... + 29460.

It is an arithmetic number, because the mean of its divisors is an integer number (15064500).

Almost surely, 2^113447309 is an apocalyptic number.

113447309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

113447309 is a deficient number, since it is larger than the sum of its proper divisors (7068691).

113447309 is a wasteful number, since it uses less digits than its factorization.

113447309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54907.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 113447309 is about 10651.1646780998. The cubic root of 113447309 is about 484.0958945866.

The spelling of 113447309 in words is "one hundred thirteen million, four hundred forty-seven thousand, three hundred nine".