22069457 has 2 divisors, whose sum is σ = 22069458. Its totient is φ = 22069456.

The previous prime is 22069429. The next prime is 22069471. The reversal of 22069457 is 75496022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13075456 + 8994001 = 3616^2 + 2999^2 .

It is a cyclic number.

It is not a de Polignac number, because 22069457 - 2²² = 17875153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22069657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11034728 + 11034729.

It is an arithmetic number, because the mean of its divisors is an integer number (11034729).

Almost surely, 2^22069457 is an apocalyptic number.

It is an amenable number.

22069457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22069457 is an equidigital number, since it uses as much as digits as its factorization.

22069457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 22069457 is about 4697.8140661376. The cubic root of 22069457 is about 280.4985039580.

The spelling of 22069457 in words is "twenty-two million, sixty-nine thousand, four hundred fifty-seven".