2544000191 has 2 divisors, whose sum is σ = 2544000192. Its totient is φ = 2544000190.

The previous prime is 2544000187. The next prime is 2544000197. The reversal of 2544000191 is 1910004452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2544000191 - 2² = 2544000187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2544000191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544000197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272000095 + 1272000096.

It is an arithmetic number, because the mean of its divisors is an integer number (1272000096).

Almost surely, 2^2544000191 is an apocalyptic number.

2544000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544000191 is an equidigital number, since it uses as much as digits as its factorization.

2544000191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2544000191 is about 50438.0827450846. The cubic root of 2544000191 is about 1365.1248734753.

The spelling of 2544000191 in words is "two billion, five hundred forty-four million, one hundred ninety-one", and thus it is an aban number.