18036529 has 8 divisors (see below), whose sum is σ = 21698240. Its totient is φ = 14646096.

The previous prime is 18036527. The next prime is 18036533. The reversal of 18036529 is 92563081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18036529 - 2¹ = 18036527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18036494 and 18036503.

It is not an unprimeable number, because it can be changed into a prime (18036523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67674 + ... + 67939.

It is an arithmetic number, because the mean of its divisors is an integer number (2712280).

Almost surely, 2^18036529 is an apocalyptic number.

18036529 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18036529 is a deficient number, since it is larger than the sum of its proper divisors (3661711).

18036529 is a wasteful number, since it uses less digits than its factorization.

18036529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135639.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 18036529 is about 4246.9434891460. The cubic root of 18036529 is about 262.2513030791.

The spelling of 18036529 in words is "eighteen million, thirty-six thousand, five hundred twenty-nine".