133936917 has 8 divisors (see below), whose sum is σ = 178737024. Its totient is φ = 89214048.

The previous prime is 133936861. The next prime is 133936919. The reversal of 133936917 is 719639331.

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

It is not a de Polignac number, because 133936917 - 2⁶ = 133936853 is a prime.

It is a super-3 number, since 3×133936917³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133936919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15133 + ... + 22290.

It is an arithmetic number, because the mean of its divisors is an integer number (22342128).

Almost surely, 2^133936917 is an apocalyptic number.

It is an amenable number.

133936917 is a deficient number, since it is larger than the sum of its proper divisors (44800107).

133936917 is a wasteful number, since it uses less digits than its factorization.

133936917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38619.

The product of its digits is 91854, while the sum is 42.

The square root of 133936917 is about 11573.1118114360. Note that the first 3 decimals coincide. The cubic root of 133936917 is about 511.6426810379.

The spelling of 133936917 in words is "one hundred thirty-three million, nine hundred thirty-six thousand, nine hundred seventeen".