133266768 has 40 divisors (see below), whose sum is σ = 355382016. Its totient is φ = 42988800.

The previous prime is 133266767. The next prime is 133266811. The reversal of 133266768 is 867662331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133266767) 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, 43293 + ... + 46268.

Almost surely, 2^133266768 is an apocalyptic number.

It is an amenable number.

133266768 is an abundant number, since it is smaller than the sum of its proper divisors (222115248).

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

133266768 is a wasteful number, since it uses less digits than its factorization.

133266768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89603 (or 89597 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 133266768 is about 11544.1226604710. The cubic root of 133266768 is about 510.7879247060.

The spelling of 133266768 in words is "one hundred thirty-three million, two hundred sixty-six thousand, seven hundred sixty-eight".