1239223 has 2 divisors, whose sum is σ = 1239224. Its totient is φ = 1239222.

The previous prime is 1239197. The next prime is 1239229. The reversal of 1239223 is 3229321.

It is a strong prime.

It is an emirp because it is prime and its reverse (3229321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1239223 - 2⁵ = 1239191 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1239194 and 1239203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1239229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619611 + 619612.

It is an arithmetic number, because the mean of its divisors is an integer number (619612).

2^1239223 is an apocalyptic number.

1239223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1239223 is an equidigital number, since it uses as much as digits as its factorization.

1239223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 1239223 is about 1113.2039345960. The cubic root of 1239223 is about 107.4112626279.

The spelling of 1239223 in words is "one million, two hundred thirty-nine thousand, two hundred twenty-three".