133983533 has 12 divisors (see below), whose sum is σ = 141479520. Its totient is φ = 126862296.

The previous prime is 133983527. The next prime is 133983541. The reversal of 133983533 is 335389331.

It is not a de Polignac number, because 133983533 - 2⁴ = 133983517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133983593) 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, 53258 + ... + 55716.

It is an arithmetic number, because the mean of its divisors is an integer number (11789960).

Almost surely, 2^133983533 is an apocalyptic number.

It is an amenable number.

133983533 is a deficient number, since it is larger than the sum of its proper divisors (7495987).

133983533 is a wasteful number, since it uses less digits than its factorization.

133983533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608 (or 2585 counting only the distinct ones).

The product of its digits is 87480, while the sum is 38.

The square root of 133983533 is about 11575.1256148692. The cubic root of 133983533 is about 511.7020322839.

The spelling of 133983533 in words is "one hundred thirty-three million, nine hundred eighty-three thousand, five hundred thirty-three".