133668007 has 4 divisors (see below), whose sum is σ = 145819656. Its totient is φ = 121516360.

The previous prime is 133667993. The next prime is 133668043. The reversal of 133668007 is 700866331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133668007 - 2⁷ = 133667879 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 (133668307) 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 3 ways as a sum of consecutive naturals, for example, 6075808 + ... + 6075829.

It is an arithmetic number, because the mean of its divisors is an integer number (36454914).

Almost surely, 2^133668007 is an apocalyptic number.

133668007 is a deficient number, since it is larger than the sum of its proper divisors (12151649).

133668007 is a wasteful number, since it uses less digits than its factorization.

133668007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12151648.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 133668007 is about 11561.4880962617. The cubic root of 133668007 is about 511.3000371078.

The spelling of 133668007 in words is "one hundred thirty-three million, six hundred sixty-eight thousand, seven".