18004153 has 12 divisors (see below), whose sum is σ = 19380708. Its totient is φ = 16716960.

The previous prime is 18004121. The next prime is 18004171. The reversal of 18004153 is 35140081.

It can be written as a sum of positive squares in 2 ways, for example, as 12089529 + 5914624 = 3477^2 + 2432^2 .

It is not a de Polignac number, because 18004153 - 2⁵ = 18004121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18001153) 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, 18663 + ... + 19603.

It is an arithmetic number, because the mean of its divisors is an integer number (1615059).

Almost surely, 2^18004153 is an apocalyptic number.

It is an amenable number.

18004153 is a deficient number, since it is larger than the sum of its proper divisors (1376555).

18004153 is an equidigital number, since it uses as much as digits as its factorization.

18004153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 18004153 is about 4243.1300946353. The cubic root of 18004153 is about 262.0942933136.

The spelling of 18004153 in words is "eighteen million, four thousand, one hundred fifty-three".