22715243 has 8 divisors (see below), whose sum is σ = 23118336. Its totient is φ = 22314600.

The previous prime is 22715239. The next prime is 22715257. The reversal of 22715243 is 34251722.

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 22715243 - 2² = 22715239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22715233) 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, 32528 + ... + 33218.

It is an arithmetic number, because the mean of its divisors is an integer number (2889792).

Almost surely, 2^22715243 is an apocalyptic number.

22715243 is a deficient number, since it is larger than the sum of its proper divisors (403093).

22715243 is an equidigital number, since it uses as much as digits as its factorization.

22715243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its digits is 3360, while the sum is 26.

The square root of 22715243 is about 4766.0510907878. The cubic root of 22715243 is about 283.2081817130.

Adding to 22715243 its reverse (34251722), we get a palindrome (56966965).

The spelling of 22715243 in words is "twenty-two million, seven hundred fifteen thousand, two hundred forty-three".