18113526 has 12 divisors (see below), whose sum is σ = 39246012. Its totient is φ = 6037836.

The previous prime is 18113521. The next prime is 18113569. The reversal of 18113526 is 62531181.

It is a self number, because there is not a number n which added to its sum of digits gives 18113526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18113521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503136 + ... + 503171.

It is an arithmetic number, because the mean of its divisors is an integer number (3270501).

Almost surely, 2^18113526 is an apocalyptic number.

18113526 is an abundant number, since it is smaller than the sum of its proper divisors (21132486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18113526 is a wasteful number, since it uses less digits than its factorization.

18113526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006315 (or 1006312 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 18113526 is about 4255.9988251878. The cubic root of 18113526 is about 262.6239523449.

The spelling of 18113526 in words is "eighteen million, one hundred thirteen thousand, five hundred twenty-six".