113613605 has 32 divisors (see below), whose sum is σ = 164198400. Its totient is φ = 75358080.

The previous prime is 113613593. The next prime is 113613631. The reversal of 113613605 is 506316311.

It is not a de Polignac number, because 113613605 - 2¹⁴ = 113597221 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52097 + ... + 54233.

It is an arithmetic number, because the mean of its divisors is an integer number (5131200).

Almost surely, 2^113613605 is an apocalyptic number.

It is an amenable number.

113613605 is a deficient number, since it is larger than the sum of its proper divisors (50584795).

113613605 is an equidigital number, since it uses as much as digits as its factorization.

113613605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 113613605 is about 10658.9682896611. The cubic root of 113613605 is about 484.3323153784.

Adding to 113613605 its reverse (506316311), we get a palindrome (619929916).

It can be divided in two parts, 1136 and 13605, that added together give a palindrome (14741).

The spelling of 113613605 in words is "one hundred thirteen million, six hundred thirteen thousand, six hundred five".