133020633 has 8 divisors (see below), whose sum is σ = 180367200. Its totient is φ = 87177248.

The previous prime is 133020611. The next prime is 133020647. The reversal of 133020633 is 336020331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133020633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133020683) 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, 375588 + ... + 375941.

It is an arithmetic number, because the mean of its divisors is an integer number (22545900).

Almost surely, 2^133020633 is an apocalyptic number.

It is an amenable number.

133020633 is a deficient number, since it is larger than the sum of its proper divisors (47346567).

133020633 is an equidigital number, since it uses as much as digits as its factorization.

133020633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751591.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 133020633 is about 11533.4571139793. The cubic root of 133020633 is about 510.4732669513.

Adding to 133020633 its reverse (336020331), we get a palindrome (469040964).

The spelling of 133020633 in words is "one hundred thirty-three million, twenty thousand, six hundred thirty-three".