1126603 has 4 divisors (see below), whose sum is σ = 1137240. Its totient is φ = 1115968.

The previous prime is 1126597. The next prime is 1126627. The reversal of 1126603 is 3066211.

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 1126603 - 2¹⁷ = 995531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126663) 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, 5158 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (284310).

2^1126603 is an apocalyptic number.

1126603 is a deficient number, since it is larger than the sum of its proper divisors (10637).

1126603 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 1126603 = (2106361)₉.

1126603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10636.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1126603 is about 1061.4155642349. The cubic root of 1126603 is about 104.0535658477.

The spelling of 1126603 in words is "one million, one hundred twenty-six thousand, six hundred three".