181002841 has 2 divisors, whose sum is σ = 181002842. Its totient is φ = 181002840.

The previous prime is 181002839. The next prime is 181002863. The reversal of 181002841 is 148200181.

181002841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179452816 + 1550025 = 13396^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 181002841 - 2¹ = 181002839 is a prime.

Together with 181002839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (181002821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90501420 + 90501421.

It is an arithmetic number, because the mean of its divisors is an integer number (90501421).

Almost surely, 2^181002841 is an apocalyptic number.

It is an amenable number.

181002841 is a deficient number, since it is larger than the sum of its proper divisors (1).

181002841 is an equidigital number, since it uses as much as digits as its factorization.

181002841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 181002841 is about 13453.7296315929. The cubic root of 181002841 is about 565.6682421526.

The spelling of 181002841 in words is "one hundred eighty-one million, two thousand, eight hundred forty-one".