1506559 has 2 divisors, whose sum is σ = 1506560. Its totient is φ = 1506558.

The previous prime is 1506553. The next prime is 1506563. The reversal of 1506559 is 9556051.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1506559 - 2³ = 1506551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1506559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1506551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753279 + 753280.

It is an arithmetic number, because the mean of its divisors is an integer number (753280).

2^1506559 is an apocalyptic number.

1506559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1506559 is an equidigital number, since it uses as much as digits as its factorization.

1506559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1506559 is about 1227.4196511381. The cubic root of 1506559 is about 114.6380301139.

The spelling of 1506559 in words is "one million, five hundred six thousand, five hundred fifty-nine".