22553147 has 2 divisors, whose sum is σ = 22553148. Its totient is φ = 22553146.

The previous prime is 22553129. The next prime is 22553149. The reversal of 22553147 is 74135522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22553147 - 2¹⁶ = 22487611 is a prime.

Together with 22553149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22553149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276573 + 11276574.

It is an arithmetic number, because the mean of its divisors is an integer number (11276574).

Almost surely, 2^22553147 is an apocalyptic number.

22553147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553147 is an equidigital number, since it uses as much as digits as its factorization.

22553147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 22553147 is about 4749.0153716323. The cubic root of 22553147 is about 282.5329149525.

Adding to 22553147 its reverse (74135522), we get a palindrome (96688669).

The spelling of 22553147 in words is "twenty-two million, five hundred fifty-three thousand, one hundred forty-seven".