113346209 has 4 divisors (see below), whose sum is σ = 113370180. Its totient is φ = 113322240.

The previous prime is 113346197. The next prime is 113346223. The reversal of 113346209 is 902643311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 902643311 = 1913 ⋅471847.

It can be written as a sum of positive squares in 2 ways, for example, as 45859984 + 67486225 = 6772^2 + 8215^2 .

It is a cyclic number.

It is not a de Polignac number, because 113346209 - 2⁴ = 113346193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113346269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264 + ... + 15225.

It is an arithmetic number, because the mean of its divisors is an integer number (28342545).

Almost surely, 2^113346209 is an apocalyptic number.

It is an amenable number.

113346209 is a deficient number, since it is larger than the sum of its proper divisors (23971).

113346209 is an equidigital number, since it uses as much as digits as its factorization.

113346209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23970.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 113346209 is about 10646.4176604152. The cubic root of 113346209 is about 483.9520491279.

The spelling of 113346209 in words is "one hundred thirteen million, three hundred forty-six thousand, two hundred nine".