133030423 has 8 divisors (see below), whose sum is σ = 140985792. Its totient is φ = 125089536.

The previous prime is 133030411. The next prime is 133030439. The reversal of 133030423 is 324030331.

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

It is not a de Polignac number, because 133030423 - 2²⁵ = 99475991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133030423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133030483) 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, 19611 + ... + 25507.

It is an arithmetic number, because the mean of its divisors is an integer number (17623224).

Almost surely, 2^133030423 is an apocalyptic number.

133030423 is a deficient number, since it is larger than the sum of its proper divisors (7955369).

133030423 is a wasteful number, since it uses less digits than its factorization.

133030423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 133030423 is about 11533.8815235809. The cubic root of 133030423 is about 510.4857898474.

Adding to 133030423 its reverse (324030331), we get a palindrome (457060754).

The spelling of 133030423 in words is "one hundred thirty-three million, thirty thousand, four hundred twenty-three".