181798125 has 20 divisors (see below), whose sum is σ = 302903040. Its totient is φ = 96958000.

The previous prime is 181798121. The next prime is 181798189. The reversal of 181798125 is 521897181.

181798125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 181798125 - 2² = 181798121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181798121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46605 + ... + 50354.

It is an arithmetic number, because the mean of its divisors is an integer number (15145152).

Almost surely, 2^181798125 is an apocalyptic number.

181798125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

181798125 is a deficient number, since it is larger than the sum of its proper divisors (121104915).

181798125 is an frugal number, since it uses more digits than its factorization.

181798125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96982 (or 96967 counting only the distinct ones).

The product of its digits is 40320, while the sum is 42.

The square root of 181798125 is about 13483.2535020298. The cubic root of 181798125 is about 566.4955028989.

The spelling of 181798125 in words is "one hundred eighty-one million, seven hundred ninety-eight thousand, one hundred twenty-five".