23220134 has 16 divisors (see below), whose sum is σ = 39867936. Its totient is φ = 9936000.

The previous prime is 23220091. The next prime is 23220139. The reversal of 23220134 is 43102232.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16124 + ... + 17504.

It is an arithmetic number, because the mean of its divisors is an integer number (2491746).

Almost surely, 2^23220134 is an apocalyptic number.

23220134 is a deficient number, since it is larger than the sum of its proper divisors (16647802).

23220134 is a wasteful number, since it uses less digits than its factorization.

23220134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23220134 is about 4818.7274253687. The cubic root of 23220134 is about 285.2911111839.

Adding to 23220134 its reverse (43102232), we get a palindrome (66322366).

The spelling of 23220134 in words is "twenty-three million, two hundred twenty thousand, one hundred thirty-four".