133318508 has 12 divisors (see below), whose sum is σ = 238271712. Its totient is φ = 65240880.

The previous prime is 133318487. The next prime is 133318541. The reversal of 133318508 is 805813331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354383 + ... + 354758.

It is an arithmetic number, because the mean of its divisors is an integer number (19855976).

Almost surely, 2^133318508 is an apocalyptic number.

It is an amenable number.

133318508 is a deficient number, since it is larger than the sum of its proper divisors (104953204).

133318508 is a wasteful number, since it uses less digits than its factorization.

133318508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709192 (or 709190 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 133318508 is about 11546.3634101824. The cubic root of 133318508 is about 510.8540195726.

The spelling of 133318508 in words is "one hundred thirty-three million, three hundred eighteen thousand, five hundred eight".