1223243454 has 32 divisors (see below), whose sum is σ = 2556843264. Its totient is φ = 389410560.

The previous prime is 1223243447. The next prime is 1223243471. The reversal of 1223243454 is 4543423221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86289 + ... + 99459.

It is an arithmetic number, because the mean of its divisors is an integer number (79901352).

Almost surely, 2^1223243454 is an apocalyptic number.

1223243454 is an abundant number, since it is smaller than the sum of its proper divisors (1333599810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223243454 is a wasteful number, since it uses less digits than its factorization.

1223243454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13872.

The product of its digits is 23040, while the sum is 30.

The square root of 1223243454 is about 34974.8974837668. The cubic root of 1223243454 is about 1069.4758121883.

Adding to 1223243454 its reverse (4543423221), we get a palindrome (5766666675).

The spelling of 1223243454 in words is "one billion, two hundred twenty-three million, two hundred forty-three thousand, four hundred fifty-four".