181914041 has 2 divisors, whose sum is σ = 181914042. Its totient is φ = 181914040.

The previous prime is 181914023. The next prime is 181914049. The reversal of 181914041 is 140419181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151388416 + 30525625 = 12304^2 + 5525^2 .

It is a cyclic number.

It is not a de Polignac number, because 181914041 - 2²⁶ = 114805177 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 181913995 and 181914013.

It is not a weakly prime, because it can be changed into another prime (181914049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90957020 + 90957021.

It is an arithmetic number, because the mean of its divisors is an integer number (90957021).

Almost surely, 2^181914041 is an apocalyptic number.

It is an amenable number.

181914041 is a deficient number, since it is larger than the sum of its proper divisors (1).

181914041 is an equidigital number, since it uses as much as digits as its factorization.

181914041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 181914041 is about 13487.5513344714. The cubic root of 181914041 is about 566.6158780702.

It can be divided in two parts, 1819140 and 41, that added together give a palindrome (1819181).

The spelling of 181914041 in words is "one hundred eighty-one million, nine hundred fourteen thousand, forty-one".