18115153 has 24 divisors (see below), whose sum is σ = 22063104. Its totient is φ = 14817600.

The previous prime is 18115147. The next prime is 18115157. The reversal of 18115153 is 35151181.

It is not a de Polignac number, because 18115153 - 2⁵ = 18115121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18115157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142576 + ... + 142702.

It is an arithmetic number, because the mean of its divisors is an integer number (919296).

Almost surely, 2^18115153 is an apocalyptic number.

It is an amenable number.

18115153 is a deficient number, since it is larger than the sum of its proper divisors (3947951).

18115153 is a wasteful number, since it uses less digits than its factorization.

18115153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 246 counting only the distinct ones).

The product of its digits is 600, while the sum is 25.

The square root of 18115153 is about 4256.1899628658. The cubic root of 18115153 is about 262.6318152789.

The spelling of 18115153 in words is "eighteen million, one hundred fifteen thousand, one hundred fifty-three".