1155143433 has 16 divisors (see below), whose sum is σ = 1548311040. Its totient is φ = 766047744.

The previous prime is 1155143411. The next prime is 1155143501. The reversal of 1155143433 is 3343415511.

It is not a de Polignac number, because 1155143433 - 2⁶ = 1155143369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155143433.

It is not an unprimeable number, because it can be changed into a prime (1155143333) 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 15 ways as a sum of consecutive naturals, for example, 537960 + ... + 540102.

It is an arithmetic number, because the mean of its divisors is an integer number (96769440).

Almost surely, 2^1155143433 is an apocalyptic number.

It is an amenable number.

1155143433 is a deficient number, since it is larger than the sum of its proper divisors (393167607).

1155143433 is a wasteful number, since it uses less digits than its factorization.

1155143433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008.

The product of its digits is 10800, while the sum is 30.

The square root of 1155143433 is about 33987.4010921694. The cubic root of 1155143433 is about 1049.2491784321.

Adding to 1155143433 its reverse (3343415511), we get a palindrome (4498558944).

The spelling of 1155143433 in words is "one billion, one hundred fifty-five million, one hundred forty-three thousand, four hundred thirty-three".