133443543 has 16 divisors (see below), whose sum is σ = 179917056. Its totient is φ = 87971520.

The previous prime is 133443533. The next prime is 133443581. The reversal of 133443543 is 345344331.

It is not a de Polignac number, because 133443543 - 2⁵ = 133443511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133443543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133443533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179230 + ... + 179972.

It is an arithmetic number, because the mean of its divisors is an integer number (11244816).

Almost surely, 2^133443543 is an apocalyptic number.

133443543 is a deficient number, since it is larger than the sum of its proper divisors (46473513).

133443543 is a wasteful number, since it uses less digits than its factorization.

133443543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its digits is 25920, while the sum is 30.

The square root of 133443543 is about 11551.7766166075. The cubic root of 133443543 is about 511.0136740098.

Adding to 133443543 its reverse (345344331), we get a palindrome (478787874).

The spelling of 133443543 in words is "one hundred thirty-three million, four hundred forty-three thousand, five hundred forty-three".