4559491 has 2 divisors, whose sum is σ = 4559492. Its totient is φ = 4559490.

The previous prime is 4559483. The next prime is 4559509. The reversal of 4559491 is 1949554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4559491 - 2³ = 4559483 is a prime.

It is a Chen prime.

It is equal to p₃₁₉₇₈₉ and since 4559491 and 319789 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4559491.

It is not a weakly prime, because it can be changed into another prime (4559441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2279745 + 2279746.

It is an arithmetic number, because the mean of its divisors is an integer number (2279746).

Almost surely, 2^4559491 is an apocalyptic number.

4559491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4559491 is an equidigital number, since it uses as much as digits as its factorization.

4559491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 37.

The square root of 4559491 is about 2135.2964665357. The cubic root of 4559491 is about 165.8207165865.

It can be divided in two parts, 4559 and 491, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4559491 in words is "four million, five hundred fifty-nine thousand, four hundred ninety-one".