113440653 has 12 divisors (see below), whose sum is σ = 164223228. Its totient is φ = 75458880.

The previous prime is 113440637. The next prime is 113440661. The reversal of 113440653 is 356044311.

113440653 is a `hidden beast` number, since 1 + 1 + 3 + 4 + 4 + 0 + 653 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 108118404 + 5322249 = 10398^2 + 2307^2 .

It is not a de Polignac number, because 113440653 - 2⁴ = 113440637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113442653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9678 + ... + 17903.

It is an arithmetic number, because the mean of its divisors is an integer number (13685269).

Almost surely, 2^113440653 is an apocalyptic number.

It is an amenable number.

113440653 is a deficient number, since it is larger than the sum of its proper divisors (50782575).

113440653 is a wasteful number, since it uses less digits than its factorization.

113440653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28044 (or 28041 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 113440653 is about 10650.8522194236. The cubic root of 113440653 is about 484.0864270335.

Adding to 113440653 its reverse (356044311), we get a palindrome (469484964).

The spelling of 113440653 in words is "one hundred thirteen million, four hundred forty thousand, six hundred fifty-three".