1559449 has 2 divisors, whose sum is σ = 1559450. Its totient is φ = 1559448.

The previous prime is 1559447. The next prime is 1559473. The reversal of 1559449 is 9449551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1545049 + 14400 = 1243^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1559449 - 2¹ = 1559447 is a prime.

Together with 1559447, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1559443) 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, 779724 + 779725.

It is an arithmetic number, because the mean of its divisors is an integer number (779725).

2^1559449 is an apocalyptic number.

It is an amenable number.

1559449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1559449 is an equidigital number, since it uses as much as digits as its factorization.

1559449 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 1559449 is about 1248.7790036672. The cubic root of 1559449 is about 115.9641436938.

It can be divided in two parts, 155 and 9449, that added together give a square (9604 = 98²).

The spelling of 1559449 in words is "one million, five hundred fifty-nine thousand, four hundred forty-nine".