133223632 has 40 divisors (see below), whose sum is σ = 267420384. Its totient is φ = 64251264.

The previous prime is 133223627. The next prime is 133223633. The reversal of 133223632 is 236322331.

It is a super-3 number, since 3×133223632³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 133223597 and 133223606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133223633) 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, 55938 + ... + 58270.

Almost surely, 2^133223632 is an apocalyptic number.

It is an amenable number.

133223632 is an abundant number, since it is smaller than the sum of its proper divisors (134196752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133223632 is a wasteful number, since it uses less digits than its factorization.

133223632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467 (or 2461 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

The square root of 133223632 is about 11542.2541992455. The cubic root of 133223632 is about 510.7328078754.

Adding to 133223632 its reverse (236322331), we get a palindrome (369545963).

It can be divided in two parts, 1332 and 23632, that added together give a square (24964 = 158²).

The spelling of 133223632 in words is "one hundred thirty-three million, two hundred twenty-three thousand, six hundred thirty-two".