4012549 has 2 divisors, whose sum is σ = 4012550. Its totient is φ = 4012548.

The previous prime is 4012537. The next prime is 4012573. The reversal of 4012549 is 9452104.

4012549 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 can be written as a sum of positive squares in only one way, i.e., 3744225 + 268324 = 1935^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012549 - 2⁹ = 4012037 is a prime.

It is a super-2 number, since 2×4012549² = 32201098954802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4012949) 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, 2006274 + 2006275.

It is an arithmetic number, because the mean of its divisors is an integer number (2006275).

Almost surely, 2^4012549 is an apocalyptic number.

It is an amenable number.

4012549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012549 is an equidigital number, since it uses as much as digits as its factorization.

4012549 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 25.

The square root of 4012549 is about 2003.1347932678. The cubic root of 4012549 is about 158.9059343667.

The spelling of 4012549 in words is "four million, twelve thousand, five hundred forty-nine".