18118045 has 8 divisors (see below), whose sum is σ = 23718240. Its totient is φ = 13176720.

The previous prime is 18118033. The next prime is 18118057. The reversal of 18118045 is 54081181.

It is an interprime number because it is at equal distance from previous prime (18118033) and next prime (18118057).

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

It is not a de Polignac number, because 18118045 - 2⁵ = 18118013 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 164655 + ... + 164764.

It is an arithmetic number, because the mean of its divisors is an integer number (2964780).

Almost surely, 2^18118045 is an apocalyptic number.

It is an amenable number.

18118045 is a deficient number, since it is larger than the sum of its proper divisors (5600195).

18118045 is a wasteful number, since it uses less digits than its factorization.

18118045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329435.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 18118045 is about 4256.5296897825. The cubic root of 18118045 is about 262.6457905182.

The spelling of 18118045 in words is "eighteen million, one hundred eighteen thousand, forty-five".