1113559 has 4 divisors (see below), whose sum is σ = 1119960. Its totient is φ = 1107160.

The previous prime is 1113557. The next prime is 1113569. The reversal of 1113559 is 9553111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1113559 - 2¹ = 1113557 is a prime.

It is a Duffinian number.

1113559 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (279990).

2^1113559 is an apocalyptic number.

1113559 is a deficient number, since it is larger than the sum of its proper divisors (6401).

1113559 is an equidigital number, since it uses as much as digits as its factorization.

1113559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400.

The product of its digits is 675, while the sum is 25.

The square root of 1113559 is about 1055.2530502207. The cubic root of 1113559 is about 103.6504226756.

The spelling of 1113559 in words is "one million, one hundred thirteen thousand, five hundred fifty-nine".