133423207 has 8 divisors (see below), whose sum is σ = 141852384. Its totient is φ = 125213088.

The previous prime is 133423201. The next prime is 133423211. The reversal of 133423207 is 702324331.

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 133423207 - 2⁷ = 133423079 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133423201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53508 + ... + 55945.

It is an arithmetic number, because the mean of its divisors is an integer number (17731548).

Almost surely, 2^133423207 is an apocalyptic number.

133423207 is a deficient number, since it is larger than the sum of its proper divisors (8429177).

133423207 is a wasteful number, since it uses less digits than its factorization.

133423207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109529.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 133423207 is about 11550.8963721436. The cubic root of 133423207 is about 510.9877142125.

Adding to 133423207 its reverse (702324331), we get a palindrome (835747538).

The spelling of 133423207 in words is "one hundred thirty-three million, four hundred twenty-three thousand, two hundred seven".