133021383 has 16 divisors (see below), whose sum is σ = 194904576. Its totient is φ = 80027840.

The previous prime is 133021373. The next prime is 133021387. The reversal of 133021383 is 383120331.

It is a cyclic number.

It is not a de Polignac number, because 133021383 - 2⁹ = 133020871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10191 + ... + 19232.

It is an arithmetic number, because the mean of its divisors is an integer number (12181536).

Almost surely, 2^133021383 is an apocalyptic number.

133021383 is a deficient number, since it is larger than the sum of its proper divisors (61883193).

133021383 is a wasteful number, since it uses less digits than its factorization.

133021383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29574.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 133021383 is about 11533.4896280354. The cubic root of 133021383 is about 510.4742263369.

The spelling of 133021383 in words is "one hundred thirty-three million, twenty-one thousand, three hundred eighty-three".