1155543541252 has 6 divisors (see below), whose sum is σ = 2022201197198. Its totient is φ = 577771770624.

The previous prime is 1155543541249. The next prime is 1155543541291. The reversal of 1155543541252 is 2521453455511.

It can be written as a sum of positive squares in only one way, i.e., 1070078526916 + 85465014336 = 1034446^2 + 292344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1155543541199 and 1155543541208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144442942653 + ... + 144442942660.

Almost surely, 2^{1155543541252} is an apocalyptic number.

It is an amenable number.

1155543541252 is a deficient number, since it is larger than the sum of its proper divisors (866657655946).

1155543541252 is a wasteful number, since it uses less digits than its factorization.

1155543541252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288885885317 (or 288885885315 counting only the distinct ones).

The product of its digits is 600000, while the sum is 43.

Adding to 1155543541252 its reverse (2521453455511), we get a palindrome (3676996996763).

The spelling of 1155543541252 in words is "one trillion, one hundred fifty-five billion, five hundred forty-three million, five hundred forty-one thousand, two hundred fifty-two".