1223453239 has 2 divisors, whose sum is σ = 1223453240. Its totient is φ = 1223453238.

The previous prime is 1223453227. The next prime is 1223453249. The reversal of 1223453239 is 9323543221.

It is a strong prime.

It is an emirp because it is prime and its reverse (9323543221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223453239 - 2¹¹ = 1223451191 is a prime.

It is a super-2 number, since 2×1223453239² = 2993675656039182242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223453249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611726619 + 611726620.

It is an arithmetic number, because the mean of its divisors is an integer number (611726620).

Almost surely, 2^1223453239 is an apocalyptic number.

1223453239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223453239 is an equidigital number, since it uses as much as digits as its factorization.

1223453239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 1223453239 is about 34977.8964347486. The cubic root of 1223453239 is about 1069.5369466959.

The spelling of 1223453239 in words is "one billion, two hundred twenty-three million, four hundred fifty-three thousand, two hundred thirty-nine".