23221245 has 8 divisors (see below), whose sum is σ = 37154016. Its totient is φ = 12384656.

The previous prime is 23221241. The next prime is 23221259. The reversal of 23221245 is 54212232.

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 23221245 - 2² = 23221241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774027 + ... + 774056.

It is an arithmetic number, because the mean of its divisors is an integer number (4644252).

Almost surely, 2^23221245 is an apocalyptic number.

It is an amenable number.

23221245 is a deficient number, since it is larger than the sum of its proper divisors (13932771).

23221245 is a wasteful number, since it uses less digits than its factorization.

23221245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548091.

The product of its digits is 960, while the sum is 21.

The square root of 23221245 is about 4818.8427033884. The cubic root of 23221245 is about 285.2956611630.

Adding to 23221245 its reverse (54212232), we get a palindrome (77433477).

The spelling of 23221245 in words is "twenty-three million, two hundred twenty-one thousand, two hundred forty-five".