133646543 has 2 divisors, whose sum is σ = 133646544. Its totient is φ = 133646542.

The previous prime is 133646509. The next prime is 133646561. The reversal of 133646543 is 345646331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133646543 - 2⁸ = 133646287 is a prime.

It is a super-2 number, since 2×133646543² = 35722796911701698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133646563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66823271 + 66823272.

It is an arithmetic number, because the mean of its divisors is an integer number (66823272).

Almost surely, 2^133646543 is an apocalyptic number.

133646543 is a deficient number, since it is larger than the sum of its proper divisors (1).

133646543 is an equidigital number, since it uses as much as digits as its factorization.

133646543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 35.

The square root of 133646543 is about 11560.5598047845. The cubic root of 133646543 is about 511.2726679771.

The spelling of 133646543 in words is "one hundred thirty-three million, six hundred forty-six thousand, five hundred forty-three".