18556134 has 32 divisors (see below), whose sum is σ = 38548224. Its totient is φ = 5950560.

The previous prime is 18556133. The next prime is 18556157. The reversal of 18556134 is 43165581.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18556095 and 18556104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18556133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17812 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (1204632).

Almost surely, 2^18556134 is an apocalyptic number.

18556134 is an abundant number, since it is smaller than the sum of its proper divisors (19992090).

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

18556134 is a wasteful number, since it uses less digits than its factorization.

18556134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its digits is 14400, while the sum is 33.

The square root of 18556134 is about 4307.6831359792. The cubic root of 18556134 is about 264.7458534092.

The spelling of 18556134 in words is "eighteen million, five hundred fifty-six thousand, one hundred thirty-four".