1223207 has 2 divisors, whose sum is σ = 1223208. Its totient is φ = 1223206.

The previous prime is 1223203. The next prime is 1223231. The reversal of 1223207 is 7023221.

It is a weak prime.

It is an emirp because it is prime and its reverse (7023221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223207 - 2² = 1223203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611603 + 611604.

It is an arithmetic number, because the mean of its divisors is an integer number (611604).

2^1223207 is an apocalyptic number.

1223207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223207 is an equidigital number, since it uses as much as digits as its factorization.

1223207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1223207 is about 1105.9868896149. The cubic root of 1223207 is about 106.9465188231.

Adding to 1223207 its reverse (7023221), we get a palindrome (8246428).

The spelling of 1223207 in words is "one million, two hundred twenty-three thousand, two hundred seven".