133049543 has 12 divisors (see below), whose sum is σ = 148731240. Its totient is φ = 118897680.

The previous prime is 133049537. The next prime is 133049569. The reversal of 133049543 is 345940331.

It is not a de Polignac number, because 133049543 - 2²² = 128855239 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 (133049513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2180 + ... + 16457.

It is an arithmetic number, because the mean of its divisors is an integer number (12394270).

Almost surely, 2^133049543 is an apocalyptic number.

133049543 is a deficient number, since it is larger than the sum of its proper divisors (15681697).

133049543 is a wasteful number, since it uses less digits than its factorization.

133049543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18718 (or 18707 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 133049543 is about 11534.7103561381. The cubic root of 133049543 is about 510.5102454582.

Adding to 133049543 its reverse (345940331), we get a palindrome (478989874).

The spelling of 133049543 in words is "one hundred thirty-three million, forty-nine thousand, five hundred forty-three".