180043136 has 192 divisors, whose sum is σ = 470383200. Its totient is φ = 67092480.

The previous prime is 180043121. The next prime is 180043139. The reversal of 180043136 is 631340081.

180043136 is digitally balanced in base 2 and base 3, because in such bases 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 (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180043139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4391276 + ... + 4391316.

Almost surely, 2^180043136 is an apocalyptic number.

180043136 is a gapful number since it is divisible by the number (16) 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 180043136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235191600).

180043136 is an abundant number, since it is smaller than the sum of its proper divisors (290340064).

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

180043136 is a wasteful number, since it uses less digits than its factorization.

180043136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 180043136 is about 13418.0153525028. The cubic root of 180043136 is about 564.6667165375. Note that the first 3 decimals are identical.

The spelling of 180043136 in words is "one hundred eighty million, forty-three thousand, one hundred thirty-six".