1123559 has 8 divisors (see below), whose sum is σ = 1159152. Its totient is φ = 1088640.

The previous prime is 1123553. The next prime is 1123561. The reversal of 1123559 is 9553211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123559 - 2⁸ = 1123303 is a prime.

It is a Duffinian 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 (1123553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6812 + ... + 6974.

It is an arithmetic number, because the mean of its divisors is an integer number (144894).

2^1123559 is an apocalyptic number.

1123559 is a deficient number, since it is larger than the sum of its proper divisors (35593).

1123559 is a wasteful number, since it uses less digits than its factorization.

1123559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its digits is 1350, while the sum is 26.

The square root of 1123559 is about 1059.9806602009. The cubic root of 1123559 is about 103.9597662418.

The spelling of 1123559 in words is "one million, one hundred twenty-three thousand, five hundred fifty-nine".