22105147 has 2 divisors, whose sum is σ = 22105148. Its totient is φ = 22105146.

The previous prime is 22105103. The next prime is 22105159. The reversal of 22105147 is 74150122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22105147 - 2¹⁹ = 21580859 is a prime.

It is not a weakly prime, because it can be changed into another prime (22105177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11052573 + 11052574.

It is an arithmetic number, because the mean of its divisors is an integer number (11052574).

Almost surely, 2^22105147 is an apocalyptic number.

22105147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22105147 is an equidigital number, since it uses as much as digits as its factorization.

22105147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 22105147 is about 4701.6111068441. The cubic root of 22105147 is about 280.6496268419.

Adding to 22105147 its reverse (74150122), we get a palindrome (96255269).

The spelling of 22105147 in words is "twenty-two million, one hundred five thousand, one hundred forty-seven".