1272223 has 2 divisors, whose sum is σ = 1272224. Its totient is φ = 1272222.

The previous prime is 1272211. The next prime is 1272233. The reversal of 1272223 is 3222721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1272223 - 2⁵ = 1272191 is a prime.

1272223 is a lucky number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1272223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636111 + 636112.

It is an arithmetic number, because the mean of its divisors is an integer number (636112).

2^1272223 is an apocalyptic number.

1272223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272223 is an equidigital number, since it uses as much as digits as its factorization.

1272223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 19.

The square root of 1272223 is about 1127.9286324941. The cubic root of 1272223 is about 108.3563617054.

Adding to 1272223 its reverse (3222721), we get a palindrome (4494944).

The spelling of 1272223 in words is "one million, two hundred seventy-two thousand, two hundred twenty-three".