4544149 has 2 divisors, whose sum is σ = 4544150. Its totient is φ = 4544148.

The previous prime is 4544147. The next prime is 4544171. The reversal of 4544149 is 9414454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3294225 + 1249924 = 1815^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 4544149 - 2¹ = 4544147 is a prime.

Together with 4544147, it forms a pair of twin primes.

4544149 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4544149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4544143) 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, 2272074 + 2272075.

It is an arithmetic number, because the mean of its divisors is an integer number (2272075).

Almost surely, 2^4544149 is an apocalyptic number.

It is an amenable number.

4544149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4544149 is an equidigital number, since it uses as much as digits as its factorization.

4544149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 4544149 is about 2131.7009640191. The cubic root of 4544149 is about 165.6345203499.

The spelling of 4544149 in words is "four million, five hundred forty-four thousand, one hundred forty-nine".