22304129 has 2 divisors, whose sum is σ = 22304130. Its totient is φ = 22304128.

The previous prime is 22304069. The next prime is 22304131. The reversal of 22304129 is 92140322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14592400 + 7711729 = 3820^2 + 2777^2 .

It is a cyclic number.

It is not a de Polignac number, because 22304129 - 2⁸ = 22303873 is a prime.

It is a Sophie Germain prime.

Together with 22304131, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22304189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11152064 + 11152065.

It is an arithmetic number, because the mean of its divisors is an integer number (11152065).

Almost surely, 2^22304129 is an apocalyptic number.

It is an amenable number.

22304129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22304129 is an equidigital number, since it uses as much as digits as its factorization.

22304129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22304129 is about 4722.7247431965. The cubic root of 22304129 is about 281.4892125170.

The spelling of 22304129 in words is "twenty-two million, three hundred four thousand, one hundred twenty-nine".