133263628 has 12 divisors (see below), whose sum is σ = 233316160. Its totient is φ = 66601872.

The previous prime is 133263623. The next prime is 133263631. The reversal of 133263628 is 826362331.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 133263593 and 133263602.

It is not an unprimeable number, because it can be changed into a prime (133263623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750 + ... + 17002.

Almost surely, 2^133263628 is an apocalyptic number.

It is an amenable number.

133263628 is a deficient number, since it is larger than the sum of its proper divisors (100052532).

133263628 is a wasteful number, since it uses less digits than its factorization.

133263628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14976 (or 14974 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 133263628 is about 11543.9866597290. The cubic root of 133263628 is about 510.7839129865.

The spelling of 133263628 in words is "one hundred thirty-three million, two hundred sixty-three thousand, six hundred twenty-eight".