1230559 has 4 divisors (see below), whose sum is σ = 1342440. Its totient is φ = 1118680.

The previous prime is 1230547. The next prime is 1230571. The reversal of 1230559 is 9550321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9550321 = 11 ⋅868211.

It is an interprime number because it is at equal distance from previous prime (1230547) and next prime (1230571).

It is a cyclic number.

It is not a de Polignac number, because 1230559 - 2¹⁷ = 1099487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230529) 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 in 3 ways as a sum of consecutive naturals, for example, 55924 + ... + 55945.

It is an arithmetic number, because the mean of its divisors is an integer number (335610).

2^1230559 is an apocalyptic number.

1230559 is a deficient number, since it is larger than the sum of its proper divisors (111881).

1230559 is a wasteful number, since it uses less digits than its factorization.

1230559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111880.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 1230559 is about 1109.3056386767. The cubic root of 1230559 is about 107.1603558298.

The spelling of 1230559 in words is "one million, two hundred thirty thousand, five hundred fifty-nine".