1223267 has 4 divisors (see below), whose sum is σ = 1235976. Its totient is φ = 1210560.

The previous prime is 1223263. The next prime is 1223279. The reversal of 1223267 is 7623221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7623221 = 37 ⋅206033.

It is not a de Polignac number, because 1223267 - 2² = 1223263 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹⁵ + 2¹⁷ + 3¹² + 2¹⁹ + 6⁴ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6209 + ... + 6402.

It is an arithmetic number, because the mean of its divisors is an integer number (308994).

2^1223267 is an apocalyptic number.

1223267 is a deficient number, since it is larger than the sum of its proper divisors (12709).

1223267 is an equidigital number, since it uses as much as digits as its factorization.

1223267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12708.

The product of its digits is 1008, while the sum is 23.

The square root of 1223267 is about 1106.0140143778. The cubic root of 1223267 is about 106.9482674195.

Adding to 1223267 its reverse (7623221), we get a palindrome (8846488).

The spelling of 1223267 in words is "one million, two hundred twenty-three thousand, two hundred sixty-seven".