1223144243 has 8 divisors (see below), whose sum is σ = 1238074656. Its totient is φ = 1208304000.

The previous prime is 1223144213. The next prime is 1223144303. The reversal of 1223144243 is 3424413221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223144243 - 2⁶ = 1223144179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223144213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4955 + ... + 49707.

It is an arithmetic number, because the mean of its divisors is an integer number (154759332).

Almost surely, 2^1223144243 is an apocalyptic number.

1223144243 is a deficient number, since it is larger than the sum of its proper divisors (14930413).

1223144243 is a wasteful number, since it uses less digits than its factorization.

1223144243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45085.

The product of its digits is 4608, while the sum is 26.

The square root of 1223144243 is about 34973.4791377695. The cubic root of 1223144243 is about 1069.4468981747.

Adding to 1223144243 its reverse (3424413221), we get a palindrome (4647557464).

The spelling of 1223144243 in words is "one billion, two hundred twenty-three million, one hundred forty-four thousand, two hundred forty-three".