183381120 has 384 divisors, whose sum is σ = 712857600. Its totient is φ = 43130880.

The previous prime is 183381101. The next prime is 183381127. The reversal of 183381120 is 21183381.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183381127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2321241 + ... + 2321319.

It is an arithmetic number, because the mean of its divisors is an integer number (1856400).

Almost surely, 2^183381120 is an apocalyptic number.

183381120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 183381120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356428800).

183381120 is an abundant number, since it is smaller than the sum of its proper divisors (529476480).

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

183381120 is a wasteful number, since it uses less digits than its factorization.

183381120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 183381120 is about 13541.8285323659. The cubic root of 183381120 is about 568.1349940332.

The spelling of 183381120 in words is "one hundred eighty-three million, three hundred eighty-one thousand, one hundred twenty".