181134 has 24 divisors (see below), whose sum is σ = 407160. Its totient is φ = 58128.

The previous prime is 181123. The next prime is 181141. The reversal of 181134 is 431181.

181134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (16965).

2¹⁸¹¹³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203580).

181134 is an abundant number, since it is smaller than the sum of its proper divisors (226026).

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

181134 is a wasteful number, since it uses less digits than its factorization.

181134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 381 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 181134 is about 425.5984022526. The cubic root of 181134 is about 56.5804841422.

Subtracting 181134 from its reverse (431181), we obtain a cube (250047 = 63³).

The spelling of 181134 in words is "one hundred eighty-one thousand, one hundred thirty-four".