22475147 has 2 divisors, whose sum is σ = 22475148. Its totient is φ = 22475146.

The previous prime is 22475143. The next prime is 22475149. The reversal of 22475147 is 74157422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22475147 - 2² = 22475143 is a prime.

Together with 22475149, 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 (22475143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11237573 + 11237574.

It is an arithmetic number, because the mean of its divisors is an integer number (11237574).

Almost surely, 2^22475147 is an apocalyptic number.

22475147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22475147 is an equidigital number, since it uses as much as digits as its factorization.

22475147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 32.

The square root of 22475147 is about 4740.7960302042. The cubic root of 22475147 is about 282.2068256206.

It can be divided in two parts, 22475 and 147, that added together give a palindrome (22622).

The spelling of 22475147 in words is "twenty-two million, four hundred seventy-five thousand, one hundred forty-seven".