133864207 has 8 divisors (see below), whose sum is σ = 136050336. Its totient is φ = 131695872.

The previous prime is 133864189. The next prime is 133864217. The reversal of 133864207 is 702468331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133864207 - 2¹⁹ = 133339919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133864217) 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, 11158 + ... + 19804.

It is an arithmetic number, because the mean of its divisors is an integer number (17006292).

Almost surely, 2^133864207 is an apocalyptic number.

133864207 is a deficient number, since it is larger than the sum of its proper divisors (2186129).

133864207 is a wasteful number, since it uses less digits than its factorization.

133864207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8897.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 133864207 is about 11569.9700518195. The cubic root of 133864207 is about 511.5500795505.

The spelling of 133864207 in words is "one hundred thirty-three million, eight hundred sixty-four thousand, two hundred seven".