18315153 has 48 divisors (see below), whose sum is σ = 29877120. Its totient is φ = 11176704.

The previous prime is 18315133. The next prime is 18315163. The reversal of 18315153 is 35151381.

It is not a de Polignac number, because 18315153 - 2¹⁰ = 18314129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

18315153 is a Rhonda number in base 10.

Its product of digits (1800) is a multiple of the sum of its prime factors (180).

It is not an unprimeable number, because it can be changed into a prime (18315113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162025 + ... + 162137.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 2^18315153 is an apocalyptic number.

It is an amenable number.

18315153 is a deficient number, since it is larger than the sum of its proper divisors (11561967).

18315153 is a wasteful number, since it uses less digits than its factorization.

18315153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 168 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 18315153 is about 4279.6206607595. The cubic root of 18315153 is about 263.5948071385.

The spelling of 18315153 in words is "eighteen million, three hundred fifteen thousand, one hundred fifty-three".