44198191 has 2 divisors, whose sum is σ = 44198192. Its totient is φ = 44198190.

The previous prime is 44198179. The next prime is 44198251. The reversal of 44198191 is 19189144.

44198191 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 is a cyclic number.

It is not a de Polignac number, because 44198191 - 2²¹ = 42101039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44198191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44198491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22099095 + 22099096.

It is an arithmetic number, because the mean of its divisors is an integer number (22099096).

Almost surely, 2^44198191 is an apocalyptic number.

44198191 is a deficient number, since it is larger than the sum of its proper divisors (1).

44198191 is an equidigital number, since it uses as much as digits as its factorization.

44198191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 37.

The square root of 44198191 is about 6648.1720043934. The cubic root of 44198191 is about 353.5641027376.

The spelling of 44198191 in words is "forty-four million, one hundred ninety-eight thousand, one hundred ninety-one".