1222723 has 2 divisors, whose sum is σ = 1222724. Its totient is φ = 1222722.

The previous prime is 1222717. The next prime is 1222729. The reversal of 1222723 is 3272221.

It is a balanced prime because it is at equal distance from previous prime (1222717) and next prime (1222729).

It is an emirp because it is prime and its reverse (3272221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222723.

It is not a weakly prime, because it can be changed into another prime (1222729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611361 + 611362.

It is an arithmetic number, because the mean of its divisors is an integer number (611362).

2^1222723 is an apocalyptic number.

1222723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222723 is an equidigital number, since it uses as much as digits as its factorization.

1222723 is an evil number, because the sum of its binary digits is even.

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

The square root of 1222723 is about 1105.7680588623. The cubic root of 1222723 is about 106.9324113870.

Adding to 1222723 its reverse (3272221), we get a palindrome (4494944).

The spelling of 1222723 in words is "one million, two hundred twenty-two thousand, seven hundred twenty-three".