183161628 has 48 divisors (see below), whose sum is σ = 511395360. Its totient is φ = 56356992.

The previous prime is 183161623. The next prime is 183161647. The reversal of 183161628 is 826161381.

183161628 is a `hidden beast` number, since 1 + 8 + 31 + 616 + 2 + 8 = 666.

183161628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×183161628² = 67096363943220768, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 183161592 and 183161601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183161623) 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, 63825 + ... + 66632.

It is an arithmetic number, because the mean of its divisors is an integer number (10654070).

Almost surely, 2^183161628 is an apocalyptic number.

183161628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

183161628 is an abundant number, since it is smaller than the sum of its proper divisors (328233732).

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

183161628 is a wasteful number, since it uses less digits than its factorization.

183161628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130483 (or 130475 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 183161628 is about 13533.7218827638. The cubic root of 183161628 is about 567.9082333730.

The spelling of 183161628 in words is "one hundred eighty-three million, one hundred sixty-one thousand, six hundred twenty-eight".