1133155543 has 4 divisors (see below), whose sum is σ = 1220321368. Its totient is φ = 1045989720.

The previous prime is 1133155537. The next prime is 1133155547. The reversal of 1133155543 is 3455513311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3455513311 = 43319 ⋅79769.

It is a cyclic number.

It is not a de Polignac number, because 1133155543 - 2⁵ = 1133155511 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 (1133155547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43582893 + ... + 43582918.

It is an arithmetic number, because the mean of its divisors is an integer number (305080342).

Almost surely, 2^1133155543 is an apocalyptic number.

1133155543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1133155543 is a deficient number, since it is larger than the sum of its proper divisors (87165825).

1133155543 is an equidigital number, since it uses as much as digits as its factorization.

1133155543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87165824.

The product of its digits is 13500, while the sum is 31.

The square root of 1133155543 is about 33662.3757777136. The cubic root of 1133155543 is about 1042.5490795366.

Adding to 1133155543 its reverse (3455513311), we get a palindrome (4588668854).

The spelling of 1133155543 in words is "one billion, one hundred thirty-three million, one hundred fifty-five thousand, five hundred forty-three".