1199559 has 4 divisors (see below), whose sum is σ = 1599416. Its totient is φ = 799704.

The previous prime is 1199557. The next prime is 1199573. The reversal of 1199559 is 9559911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9559911 = 3 ⋅3186637.

It is not a de Polignac number, because 1199559 - 2¹ = 1199557 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199551) 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 in 3 ways as a sum of consecutive naturals, for example, 199924 + ... + 199929.

It is an arithmetic number, because the mean of its divisors is an integer number (399854).

2^1199559 is an apocalyptic number.

1199559 is a deficient number, since it is larger than the sum of its proper divisors (399857).

1199559 is an equidigital number, since it uses as much as digits as its factorization.

1199559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399856.

The product of its digits is 18225, while the sum is 39.

The square root of 1199559 is about 1095.2438084737. The cubic root of 1199559 is about 106.2528377558.

The spelling of 1199559 in words is "one million, one hundred ninety-nine thousand, five hundred fifty-nine".