133012233 has 32 divisors (see below), whose sum is σ = 209848320. Its totient is φ = 82978560.

The previous prime is 133012223. The next prime is 133012237. The reversal of 133012233 is 332210331.

It is not a de Polignac number, because 133012233 - 2⁹ = 133011721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133012237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89688 + ... + 91158.

It is an arithmetic number, because the mean of its divisors is an integer number (6557760).

Almost surely, 2^133012233 is an apocalyptic number.

It is an amenable number.

133012233 is a deficient number, since it is larger than the sum of its proper divisors (76836087).

133012233 is a wasteful number, since it uses less digits than its factorization.

133012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133012233 is about 11533.0929502887. The cubic root of 133012233 is about 510.4625215865.

Adding to 133012233 its reverse (332210331), we get a palindrome (465222564).

The spelling of 133012233 in words is "one hundred thirty-three million, twelve thousand, two hundred thirty-three".