1233255543 has 16 divisors (see below), whose sum is σ = 1779232896. Its totient is φ = 755324640.

The previous prime is 1233255493. The next prime is 1233255557. The reversal of 1233255543 is 3455523321.

It is not a de Polignac number, because 1233255543 - 2¹⁴ = 1233239159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233255593) 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 15 ways as a sum of consecutive naturals, for example, 66705 + ... + 83162.

It is an arithmetic number, because the mean of its divisors is an integer number (111202056).

Almost surely, 2^1233255543 is an apocalyptic number.

1233255543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1233255543 is a deficient number, since it is larger than the sum of its proper divisors (545977353).

1233255543 is a wasteful number, since it uses less digits than its factorization.

1233255543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150094.

The product of its digits is 54000, while the sum is 33.

The square root of 1233255543 is about 35117.7382956249. The cubic root of 1233255543 is about 1072.3857277417.

Adding to 1233255543 its reverse (3455523321), we get a palindrome (4688778864).

The spelling of 1233255543 in words is "one billion, two hundred thirty-three million, two hundred fifty-five thousand, five hundred forty-three".