1116553 has 8 divisors (see below), whose sum is σ = 1158696. Its totient is φ = 1075200.

The previous prime is 1116547. The next prime is 1116569. The reversal of 1116553 is 3556111.

It can be written as a sum of positive squares in 4 ways, for example, as 7744 + 1108809 = 88^2 + 1053^2 .

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 1116553 - 2¹³ = 1108361 is a prime.

It is a Duffinian number.

1116553 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4513 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (144837).

2^1116553 is an apocalyptic number.

It is an amenable number.

1116553 is a deficient number, since it is larger than the sum of its proper divisors (42143).

1116553 is a wasteful number, since it uses less digits than its factorization.

1116553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its digits is 450, while the sum is 22.

The square root of 1116553 is about 1056.6707150290. The cubic root of 1116553 is about 103.7432337001.

The spelling of 1116553 in words is "one million, one hundred sixteen thousand, five hundred fifty-three".