18418153 has 8 divisors (see below), whose sum is σ = 19914048. Its totient is φ = 16933584.

The previous prime is 18418133. The next prime is 18418159. The reversal of 18418153 is 35181481.

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 18418153 - 2²¹ = 16321001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18418159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (2489256).

Almost surely, 2^18418153 is an apocalyptic number.

18418153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18418153 is a deficient number, since it is larger than the sum of its proper divisors (1495895).

18418153 is a wasteful number, since it uses less digits than its factorization.

18418153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663.

The product of its digits is 3840, while the sum is 31.

The square root of 18418153 is about 4291.6375662444. The cubic root of 18418153 is about 264.0880149219.

The spelling of 18418153 in words is "eighteen million, four hundred eighteen thousand, one hundred fifty-three".