183085812 has 144 divisors (see below), whose sum is σ = 587825280. Its totient is φ = 48252672.

The previous prime is 183085811. The next prime is 183085829. The reversal of 183085812 is 218580381.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183085811) 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, 127048 + ... + 128480.

It is an arithmetic number, because the mean of its divisors is an integer number (4082120).

Almost surely, 2^183085812 is an apocalyptic number.

183085812 is a gapful number since it is divisible by the number (12) 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 183085812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293912640).

183085812 is an abundant number, since it is smaller than the sum of its proper divisors (404739468).

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

183085812 is a wasteful number, since it uses less digits than its factorization.

183085812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 183085812 is about 13530.9205895238. The cubic root of 183085812 is about 567.8298645697.

The spelling of 183085812 in words is "one hundred eighty-three million, eighty-five thousand, eight hundred twelve".