1109223 has 12 divisors (see below), whose sum is σ = 1646008. Its totient is φ = 719280.

The previous prime is 1109219. The next prime is 1109231. The reversal of 1109223 is 3229011.

It is a happy number.

It is not a de Polignac number, because 1109223 - 2² = 1109219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1109196 and 1109205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1333 + ... + 1998.

2^1109223 is an apocalyptic number.

1109223 is a deficient number, since it is larger than the sum of its proper divisors (536785).

1109223 is a wasteful number, since it uses less digits than its factorization.

1109223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1109223 is about 1053.1965628504. The cubic root of 1109223 is about 103.5157156000.

The spelling of 1109223 in words is "one million, one hundred nine thousand, two hundred twenty-three".