181825080 has 64 divisors (see below), whose sum is σ = 550519200. Its totient is φ = 48038400.

The previous prime is 181825073. The next prime is 181825109. The reversal of 181825080 is 80528181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6130 + ... + 20030.

Almost surely, 2^181825080 is an apocalyptic number.

181825080 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 181825080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275259600).

181825080 is an abundant number, since it is smaller than the sum of its proper divisors (368694120).

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

181825080 is a wasteful number, since it uses less digits than its factorization.

181825080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14024 (or 14020 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 181825080 is about 13484.2530382665. The cubic root of 181825080 is about 566.5234993953.

The spelling of 181825080 in words is "one hundred eighty-one million, eight hundred twenty-five thousand, eighty".