133009633 has 8 divisors (see below), whose sum is σ = 140117120. Its totient is φ = 125912880.

The previous prime is 133009619. The next prime is 133009651. The reversal of 133009633 is 336900331.

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-133009633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133009033) 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, 41923 + ... + 44983.

It is an arithmetic number, because the mean of its divisors is an integer number (17514640).

Almost surely, 2^133009633 is an apocalyptic number.

It is an amenable number.

133009633 is a deficient number, since it is larger than the sum of its proper divisors (7107487).

133009633 is a wasteful number, since it uses less digits than its factorization.

133009633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367.

The product of its (nonzero) digits is 4374, while the sum is 28.

The square root of 133009633 is about 11532.9802306256. The cubic root of 133009633 is about 510.4591955485.

Adding to 133009633 its reverse (336900331), we get a palindrome (469909964).

The spelling of 133009633 in words is "one hundred thirty-three million, nine thousand, six hundred thirty-three".