113635565 has 16 divisors (see below), whose sum is σ = 144737280. Its totient is φ = 85351680.

The previous prime is 113635517. The next prime is 113635579. The reversal of 113635565 is 565536311.

It is a happy number.

It is not a de Polignac number, because 113635565 - 2¹⁶ = 113570029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39320 + ... + 42110.

It is an arithmetic number, because the mean of its divisors is an integer number (9046080).

Almost surely, 2^113635565 is an apocalyptic number.

It is an amenable number.

113635565 is a deficient number, since it is larger than the sum of its proper divisors (31101715).

113635565 is a wasteful number, since it uses less digits than its factorization.

113635565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292.

The product of its digits is 40500, while the sum is 35.

The square root of 113635565 is about 10659.9983583488. The cubic root of 113635565 is about 484.3635183681.

Adding to 113635565 its sum of digits (35), we get a square (113635600 = 10660²).

The spelling of 113635565 in words is "one hundred thirteen million, six hundred thirty-five thousand, five hundred sixty-five".