133533543 has 24 divisors (see below), whose sum is σ = 210763504. Its totient is φ = 74701440.

The previous prime is 133533541. The next prime is 133533557. The reversal of 133533543 is 345335331.

It is not a de Polignac number, because 133533543 - 2¹ = 133533541 is a prime.

It is a super-2 number, since 2×133533543² = 35662414212265698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133533543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133533541) 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 23 ways as a sum of consecutive naturals, for example, 9430 + ... + 18867.

Almost surely, 2^133533543 is an apocalyptic number.

133533543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133533543 is a deficient number, since it is larger than the sum of its proper divisors (77229961).

133533543 is a wasteful number, since it uses less digits than its factorization.

133533543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28335 (or 28324 counting only the distinct ones).

The product of its digits is 24300, while the sum is 30.

The square root of 133533543 is about 11555.6714646965. The cubic root of 133533543 is about 511.1285313096.

Adding to 133533543 its reverse (345335331), we get a palindrome (478868874).

The spelling of 133533543 in words is "one hundred thirty-three million, five hundred thirty-three thousand, five hundred forty-three".