1223053543 has 8 divisors (see below), whose sum is σ = 1280024928. Its totient is φ = 1166398464.

The previous prime is 1223053529. The next prime is 1223053547. The reversal of 1223053543 is 3453503221.

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 1223053543 - 2¹⁷ = 1222922471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223053547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71146 + ... + 86647.

It is an arithmetic number, because the mean of its divisors is an integer number (160003116).

Almost surely, 2^1223053543 is an apocalyptic number.

1223053543 is a deficient number, since it is larger than the sum of its proper divisors (56971385).

1223053543 is a wasteful number, since it uses less digits than its factorization.

1223053543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158153.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 1223053543 is about 34972.1824168867. The cubic root of 1223053543 is about 1069.4204632355.

Adding to 1223053543 its reverse (3453503221), we get a palindrome (4676556764).

The spelling of 1223053543 in words is "one billion, two hundred twenty-three million, fifty-three thousand, five hundred forty-three".