1145223 has 6 divisors (see below), whose sum is σ = 1654224. Its totient is φ = 763476.

The previous prime is 1145213. The next prime is 1145227. The reversal of 1145223 is 3225411.

It is not a de Polignac number, because 1145223 - 2⁵ = 1145191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145196 and 1145205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63615 + ... + 63632.

It is an arithmetic number, because the mean of its divisors is an integer number (275704).

2^1145223 is an apocalyptic number.

1145223 is a deficient number, since it is larger than the sum of its proper divisors (509001).

1145223 is a wasteful number, since it uses less digits than its factorization.

1145223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127253 (or 127250 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1145223 is about 1070.1509239355. The cubic root of 1145223 is about 104.6236869437.

The spelling of 1145223 in words is "one million, one hundred forty-five thousand, two hundred twenty-three".