113611605 has 16 divisors (see below), whose sum is σ = 189682560. Its totient is φ = 57958208.

The previous prime is 113611543. The next prime is 113611609. The reversal of 113611605 is 506116311.

It is a cyclic number.

It is not a de Polignac number, because 113611605 - 2¹¹ = 113609557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113611609) 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, 164310 + ... + 164999.

It is an arithmetic number, because the mean of its divisors is an integer number (11855160).

Almost surely, 2^113611605 is an apocalyptic number.

113611605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113611605 is a deficient number, since it is larger than the sum of its proper divisors (76070955).

113611605 is a wasteful number, since it uses less digits than its factorization.

113611605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329340.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 113611605 is about 10658.8744715378. The cubic root of 113611605 is about 484.3294733763.

Adding to 113611605 its reverse (506116311), we get a palindrome (619727916).

The spelling of 113611605 in words is "one hundred thirteen million, six hundred eleven thousand, six hundred five".