22223147 has 2 divisors, whose sum is σ = 22223148. Its totient is φ = 22223146.

The previous prime is 22223143. The next prime is 22223161. The reversal of 22223147 is 74132222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22223147 - 2² = 22223143 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22223143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111573 + 11111574.

It is an arithmetic number, because the mean of its divisors is an integer number (11111574).

Almost surely, 2^22223147 is an apocalyptic number.

22223147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22223147 is an equidigital number, since it uses as much as digits as its factorization.

22223147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 23.

The square root of 22223147 is about 4714.1432943855. The cubic root of 22223147 is about 281.1481216521.

Adding to 22223147 its reverse (74132222), we get a palindrome (96355369).

The spelling of 22223147 in words is "twenty-two million, two hundred twenty-three thousand, one hundred forty-seven".