22388147 has 2 divisors, whose sum is σ = 22388148. Its totient is φ = 22388146.

The previous prime is 22388111. The next prime is 22388153. The reversal of 22388147 is 74188322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22388147 - 2²² = 18193843 is a prime.

It is not a weakly prime, because it can be changed into another prime (22382147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11194073 + 11194074.

It is an arithmetic number, because the mean of its divisors is an integer number (11194074).

Almost surely, 2^22388147 is an apocalyptic number.

22388147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22388147 is an equidigital number, since it uses as much as digits as its factorization.

22388147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 35.

The square root of 22388147 is about 4731.6114591120. The cubic root of 22388147 is about 281.8422193005.

The spelling of 22388147 in words is "twenty-two million, three hundred eighty-eight thousand, one hundred forty-seven".