133201688 has 16 divisors (see below), whose sum is σ = 251965080. Its totient is φ = 66011008.

The previous prime is 133201643. The next prime is 133201697. The reversal of 133201688 is 886102331.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

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, 72770 + ... + 74577.

Almost surely, 2^133201688 is an apocalyptic number.

It is an amenable number.

133201688 is a deficient number, since it is larger than the sum of its proper divisors (118763392).

133201688 is a wasteful number, since it uses less digits than its factorization.

133201688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147466 (or 147462 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 133201688 is about 11541.3035658889. The cubic root of 133201688 is about 510.7047644621.

The spelling of 133201688 in words is "one hundred thirty-three million, two hundred one thousand, six hundred eighty-eight".