19941149 has 2 divisors, whose sum is σ = 19941150. Its totient is φ = 19941148.

The previous prime is 19941139. The next prime is 19941179. The reversal of 19941149 is 94114991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18232900 + 1708249 = 4270^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 19941149 - 2¹² = 19937053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19941139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9970574 + 9970575.

It is an arithmetic number, because the mean of its divisors is an integer number (9970575).

Almost surely, 2^19941149 is an apocalyptic number.

It is an amenable number.

19941149 is a deficient number, since it is larger than the sum of its proper divisors (1).

19941149 is an equidigital number, since it uses as much as digits as its factorization.

19941149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 38.

The square root of 19941149 is about 4465.5513657330. The cubic root of 19941149 is about 271.1752564347.

The spelling of 19941149 in words is "nineteen million, nine hundred forty-one thousand, one hundred forty-nine".