133668292 has 12 divisors (see below), whose sum is σ = 237214656. Its totient is φ = 65892680.

The previous prime is 133668257. The next prime is 133668307. The reversal of 133668292 is 292866331.

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, 235048 + ... + 235615.

It is an arithmetic number, because the mean of its divisors is an integer number (19767888).

Almost surely, 2^133668292 is an apocalyptic number.

It is an amenable number.

133668292 is a deficient number, since it is larger than the sum of its proper divisors (103546364).

133668292 is a wasteful number, since it uses less digits than its factorization.

133668292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470738 (or 470736 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 133668292 is about 11561.5004216581. The cubic root of 133668292 is about 511.3004004967.

The spelling of 133668292 in words is "one hundred thirty-three million, six hundred sixty-eight thousand, two hundred ninety-two".