113273609 has 4 divisors (see below), whose sum is σ = 113441604. Its totient is φ = 113105616.

The previous prime is 113273603. The next prime is 113273647. The reversal of 113273609 is 906372311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906372311 = 13 ⋅69720947.

It can be written as a sum of positive squares in 2 ways, for example, as 112954384 + 319225 = 10628^2 + 565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113273609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113273603) 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, 82982 + ... + 84335.

It is an arithmetic number, because the mean of its divisors is an integer number (28360401).

Almost surely, 2^113273609 is an apocalyptic number.

It is an amenable number.

113273609 is a deficient number, since it is larger than the sum of its proper divisors (167995).

113273609 is an equidigital number, since it uses as much as digits as its factorization.

113273609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167994.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 113273609 is about 10643.0075166750. The cubic root of 113273609 is about 483.8487008018.

The spelling of 113273609 in words is "one hundred thirteen million, two hundred seventy-three thousand, six hundred nine".