181982041 has 4 divisors (see below), whose sum is σ = 182783952. Its totient is φ = 181180132.

The previous prime is 181982023. The next prime is 181982051. The reversal of 181982041 is 140289181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 181982041 - 2²¹ = 179884889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181981988 and 181982006.

It is not an unprimeable number, because it can be changed into a prime (181982011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400615 + ... + 401068.

It is an arithmetic number, because the mean of its divisors is an integer number (45695988).

Almost surely, 2^181982041 is an apocalyptic number.

It is an amenable number.

181982041 is a deficient number, since it is larger than the sum of its proper divisors (801911).

181982041 is an equidigital number, since it uses as much as digits as its factorization.

181982041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801910.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 181982041 is about 13490.0719419876. The cubic root of 181982041 is about 566.6864701653.

The spelling of 181982041 in words is "one hundred eighty-one million, nine hundred eighty-two thousand, forty-one".