181467841 has 9 divisors (see below), whose sum is σ = 191791971. Its totient is φ = 171674424.

The previous prime is 181467829. The next prime is 181467859. The reversal of 181467841 is 148764181.

The square root of 181467841 is 13471.

It is a perfect power (a square), and thus also a powerful number.

181467841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 24216241 + 157251600 = 4921^2 + 12540^2 .

It is not a de Polignac number, because 181467841 - 2¹⁵ = 181435073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181467794 and 181467803.

It is not an unprimeable number, because it can be changed into a prime (181467821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 255595 + ... + 256303.

It is an arithmetic number, because the mean of its divisors is an integer number (21310219).

Almost surely, 2^181467841 is an apocalyptic number.

181467841 is the 13471-st square number.

181467841 is the 6736-th centered octagonal number.

It is an amenable number.

181467841 is a deficient number, since it is larger than the sum of its proper divisors (10324130).

181467841 is an frugal number, since it uses more digits than its factorization.

181467841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 728 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The cubic root of 181467841 is about 566.1522323559.

The spelling of 181467841 in words is "one hundred eighty-one million, four hundred sixty-seven thousand, eight hundred forty-one".