1261223 has 2 divisors, whose sum is σ = 1261224. Its totient is φ = 1261222.

The previous prime is 1261217. The next prime is 1261259. The reversal of 1261223 is 3221621.

It is a weak prime.

1261223 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 1261223 - 2¹⁴ = 1244839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1261523) 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, 630611 + 630612.

It is an arithmetic number, because the mean of its divisors is an integer number (630612).

2^1261223 is an apocalyptic number.

1261223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261223 is an equidigital number, since it uses as much as digits as its factorization.

1261223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 1261223 is about 1123.0418514018. The cubic root of 1261223 is about 108.0431640450.

Adding to 1261223 its reverse (3221621), we get a palindrome (4482844).

The spelling of 1261223 in words is "one million, two hundred sixty-one thousand, two hundred twenty-three".