24221147 has 2 divisors, whose sum is σ = 24221148. Its totient is φ = 24221146.

The previous prime is 24221123. The next prime is 24221161. The reversal of 24221147 is 74112242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24221147 - 2⁸ = 24220891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24221117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12110573 + 12110574.

It is an arithmetic number, because the mean of its divisors is an integer number (12110574).

Almost surely, 2^24221147 is an apocalyptic number.

24221147 is a deficient number, since it is larger than the sum of its proper divisors (1).

24221147 is an equidigital number, since it uses as much as digits as its factorization.

24221147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896, while the sum is 23.

The square root of 24221147 is about 4921.4984506754. The cubic root of 24221147 is about 289.3331765675. Note that the first 3 decimals are identical.

Adding to 24221147 its reverse (74112242), we get a palindrome (98333389).

The spelling of 24221147 in words is "twenty-four million, two hundred twenty-one thousand, one hundred forty-seven".