113243605 has 16 divisors (see below), whose sum is σ = 142902144. Its totient is φ = 85983040.

The previous prime is 113243593. The next prime is 113243609. The reversal of 113243605 is 506342311.

It is not a de Polignac number, because 113243605 - 2⁵ = 113243573 is a prime.

It is a super-2 number, since 2×113243605² = 25648228146792050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113243605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113243609) 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, 11307 + ... + 18823.

It is an arithmetic number, because the mean of its divisors is an integer number (8931384).

Almost surely, 2^113243605 is an apocalyptic number.

It is an amenable number.

113243605 is a deficient number, since it is larger than the sum of its proper divisors (29658539).

113243605 is a wasteful number, since it uses less digits than its factorization.

113243605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 113243605 is about 10641.5978593442. The cubic root of 113243605 is about 483.8059762916.

Adding to 113243605 its reverse (506342311), we get a palindrome (619585916).

The spelling of 113243605 in words is "one hundred thirteen million, two hundred forty-three thousand, six hundred five".