133706543 has 4 divisors (see below), whose sum is σ = 133859880. Its totient is φ = 133553208.

The previous prime is 133706537. The next prime is 133706557. The reversal of 133706543 is 345607331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133706543 - 2¹⁰ = 133705519 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 (133706533) 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 3 ways as a sum of consecutive naturals, for example, 75353 + ... + 77106.

It is an arithmetic number, because the mean of its divisors is an integer number (33464970).

Almost surely, 2^133706543 is an apocalyptic number.

133706543 is a deficient number, since it is larger than the sum of its proper divisors (153337).

133706543 is an equidigital number, since it uses as much as digits as its factorization.

133706543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153336.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 133706543 is about 11563.1545436356. The cubic root of 133706543 is about 511.3491677000.

The spelling of 133706543 in words is "one hundred thirty-three million, seven hundred six thousand, five hundred forty-three".