1245223 has 4 divisors (see below), whose sum is σ = 1423120. Its totient is φ = 1067328.

The previous prime is 1245217. The next prime is 1245227. The reversal of 1245223 is 3225421.

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 1245223 - 2⁵ = 1245191 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹⁶ + 4 + 5² + 2¹⁷ + 2²⁰ + 3² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245227) 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 3 ways as a sum of consecutive naturals, for example, 88938 + ... + 88951.

It is an arithmetic number, because the mean of its divisors is an integer number (355780).

2^1245223 is an apocalyptic number.

1245223 is a deficient number, since it is larger than the sum of its proper divisors (177897).

1245223 is an equidigital number, since it uses as much as digits as its factorization.

1245223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177896.

The product of its digits is 480, while the sum is 19.

The square root of 1245223 is about 1115.8956044362. The cubic root of 1245223 is about 107.5843361987.

The spelling of 1245223 in words is "one million, two hundred forty-five thousand, two hundred twenty-three".