133285232 has 30 divisors (see below), whose sum is σ = 264362544. Its totient is φ = 65069760.

The previous prime is 133285231. The next prime is 133285237. The reversal of 133285232 is 232582331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133285195 and 133285204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133285231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316382 + ... + 316802.

Almost surely, 2^133285232 is an apocalyptic number.

It is an amenable number.

133285232 is a deficient number, since it is larger than the sum of its proper divisors (131077312).

133285232 is an frugal number, since it uses more digits than its factorization.

133285232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 470 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 133285232 is about 11544.9223470754. The cubic root of 133285232 is about 510.8115133641.

The spelling of 133285232 in words is "one hundred thirty-three million, two hundred eighty-five thousand, two hundred thirty-two".