18152136 has 48 divisors (see below), whose sum is σ = 49980060. Its totient is φ = 5950080.

The previous prime is 18152131. The next prime is 18152153. The reversal of 18152136 is 63125181.

It can be written as a sum of positive squares in 2 ways, for example, as 17589636 + 562500 = 4194^2 + 750^2 .

It is not an unprimeable number, because it can be changed into a prime (18152131) 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, 2326 + ... + 6458.

Almost surely, 2^18152136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18152136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24990030).

18152136 is an abundant number, since it is smaller than the sum of its proper divisors (31827924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18152136 is a wasteful number, since it uses less digits than its factorization.

18152136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206 (or 4199 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 18152136 is about 4260.5323611023. The cubic root of 18152136 is about 262.8104191639.

The spelling of 18152136 in words is "eighteen million, one hundred fifty-two thousand, one hundred thirty-six".