133424023 has 8 divisors (see below), whose sum is σ = 143435520. Its totient is φ = 123711480.

The previous prime is 133424009. The next prime is 133424033. The reversal of 133424023 is 320424331.

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 133424023 - 2⁵ = 133423991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133423985 and 133424003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133424033) 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, 73813 + ... + 75598.

It is an arithmetic number, because the mean of its divisors is an integer number (17929440).

Almost surely, 2^133424023 is an apocalyptic number.

133424023 is a deficient number, since it is larger than the sum of its proper divisors (10011497).

133424023 is a wasteful number, since it uses less digits than its factorization.

133424023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149477.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 133424023 is about 11550.9316940236. The cubic root of 133424023 is about 510.9887559231.

Adding to 133424023 its reverse (320424331), we get a palindrome (453848354).

The spelling of 133424023 in words is "one hundred thirty-three million, four hundred twenty-four thousand, twenty-three".