18287054 has 4 divisors (see below), whose sum is σ = 27430584. Its totient is φ = 9143526.

The previous prime is 18287051. The next prime is 18287057. The reversal of 18287054 is 45078281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45078281 = 1997 ⋅22573.

It is an interprime number because it is at equal distance from previous prime (18287051) and next prime (18287057).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18287051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4571762 + ... + 4571765.

It is an arithmetic number, because the mean of its divisors is an integer number (6857646).

Almost surely, 2^18287054 is an apocalyptic number.

18287054 is a deficient number, since it is larger than the sum of its proper divisors (9143530).

18287054 is an equidigital number, since it uses as much as digits as its factorization.

18287054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143529.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 18287054 is about 4276.3365162251. The cubic root of 18287054 is about 263.4599362747.

The spelling of 18287054 in words is "eighteen million, two hundred eighty-seven thousand, fifty-four".