18114100 has 18 divisors (see below), whose sum is σ = 39307814. Its totient is φ = 7245600.

The previous prime is 18114097. The next prime is 18114101. The reversal of 18114100 is 141181.

It can be written as a sum of positive squares in 3 ways, for example, as 34596 + 18079504 = 186^2 + 4252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18114101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90471 + ... + 90670.

Almost surely, 2^18114100 is an apocalyptic number.

18114100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18114100 is an abundant number, since it is smaller than the sum of its proper divisors (21193714).

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

18114100 is a wasteful number, since it uses less digits than its factorization.

18114100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181155 (or 181148 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 18114100 is about 4256.0662588827. The cubic root of 18114100 is about 262.6267264147.

Adding to 18114100 its reverse (141181), we get a palindrome (18255281).

The spelling of 18114100 in words is "eighteen million, one hundred fourteen thousand, one hundred".