1143553026436 has 12 divisors (see below), whose sum is σ = 2001305068812. Its totient is φ = 571751578208.

The previous prime is 1143553026433. The next prime is 1143553026437. The reversal of 1143553026436 is 6346203553411.

It can be written as a sum of positive squares in 2 ways, for example, as 776171572036 + 367381454400 = 881006^2 + 606120^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1143553026392 and 1143553026401.

It is not an unprimeable number, because it can be changed into a prime (1143553026433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6130375 + ... + 6314158.

It is an arithmetic number, because the mean of its divisors is an integer number (166775422401).

Almost surely, 2^{1143553026436} is an apocalyptic number.

It is an amenable number.

1143553026436 is a deficient number, since it is larger than the sum of its proper divisors (857752042376).

1143553026436 is a wasteful number, since it uses less digits than its factorization.

1143553026436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12467510 (or 12467508 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

Adding to 1143553026436 its reverse (6346203553411), we get a palindrome (7489756579847).

The spelling of 1143553026436 in words is "one trillion, one hundred forty-three billion, five hundred fifty-three million, twenty-six thousand, four hundred thirty-six".