133872543 has 12 divisors (see below), whose sum is σ = 220996048. Its totient is φ = 76498560.

The previous prime is 133872533. The next prime is 133872551. The reversal of 133872543 is 345278331.

133872543 is a `hidden beast` number, since 1 + 33 + 87 + 2 + 543 = 666.

It is not a de Polignac number, because 133872543 - 2²⁰ = 132823967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133872498 and 133872507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133872533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1062418 + ... + 1062543.

Almost surely, 2^133872543 is an apocalyptic number.

133872543 is a deficient number, since it is larger than the sum of its proper divisors (87123505).

133872543 is a wasteful number, since it uses less digits than its factorization.

133872543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124974 (or 2124971 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 133872543 is about 11570.3302891491. The cubic root of 133872543 is about 511.5606977559.

The spelling of 133872543 in words is "one hundred thirty-three million, eight hundred seventy-two thousand, five hundred forty-three".