133172601 has 8 divisors (see below), whose sum is σ = 177669984. Its totient is φ = 88728480.

The previous prime is 133172597. The next prime is 133172629. The reversal of 133172601 is 106271331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133172601 - 2² = 133172597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133172671) 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, 7060 + ... + 17781.

It is an arithmetic number, because the mean of its divisors is an integer number (22208748).

Almost surely, 2^133172601 is an apocalyptic number.

It is an amenable number.

133172601 is a deficient number, since it is larger than the sum of its proper divisors (44497383).

133172601 is a wasteful number, since it uses less digits than its factorization.

133172601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26631.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 133172601 is about 11540.0433708024. The cubic root of 133172601 is about 510.6675878789.

The spelling of 133172601 in words is "one hundred thirty-three million, one hundred seventy-two thousand, six hundred one".