133235983 has 8 divisors (see below), whose sum is σ = 135916560. Its totient is φ = 130569600.

The previous prime is 133235957. The next prime is 133236013. The reversal of 133235983 is 389532331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133235983 - 2⁵ = 133235951 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 (133235903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16533 + ... + 23233.

It is an arithmetic number, because the mean of its divisors is an integer number (16989570).

Almost surely, 2^133235983 is an apocalyptic number.

133235983 is a deficient number, since it is larger than the sum of its proper divisors (2680577).

133235983 is an equidigital number, since it uses as much as digits as its factorization.

133235983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097.

The product of its digits is 58320, while the sum is 37.

The square root of 133235983 is about 11542.7892209812. The cubic root of 133235983 is about 510.7485905257.

It can be divided in two parts, 13323 and 5983, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 133235983 in words is "one hundred thirty-three million, two hundred thirty-five thousand, nine hundred eighty-three".