133554643 has 2 divisors, whose sum is σ = 133554644. Its totient is φ = 133554642.

The previous prime is 133554637. The next prime is 133554653. The reversal of 133554643 is 346455331.

It is a weak prime.

It is an emirp because it is prime and its reverse (346455331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133554643 - 2⁵ = 133554611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133554599 and 133554608.

It is not a weakly prime, because it can be changed into another prime (133554653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66777321 + 66777322.

It is an arithmetic number, because the mean of its divisors is an integer number (66777322).

Almost surely, 2^133554643 is an apocalyptic number.

133554643 is a deficient number, since it is larger than the sum of its proper divisors (1).

133554643 is an equidigital number, since it uses as much as digits as its factorization.

133554643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 34.

The square root of 133554643 is about 11556.5844002456. The cubic root of 133554643 is about 511.1554514970.

The spelling of 133554643 in words is "one hundred thirty-three million, five hundred fifty-four thousand, six hundred forty-three".