22685147 has 2 divisors, whose sum is σ = 22685148. Its totient is φ = 22685146.

The previous prime is 22685137. The next prime is 22685171. The reversal of 22685147 is 74158622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22685147 - 2⁸ = 22684891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22685137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11342573 + 11342574.

It is an arithmetic number, because the mean of its divisors is an integer number (11342574).

Almost surely, 2^22685147 is an apocalyptic number.

22685147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22685147 is an equidigital number, since it uses as much as digits as its factorization.

22685147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 22685147 is about 4762.8927134673. The cubic root of 22685147 is about 283.0830498722.

The spelling of 22685147 in words is "twenty-two million, six hundred eighty-five thousand, one hundred forty-seven".