22140353 has 2 divisors, whose sum is σ = 22140354. Its totient is φ = 22140352.

The previous prime is 22140343. The next prime is 22140361. The reversal of 22140353 is 35304122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17247409 + 4892944 = 4153^2 + 2212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22140353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22140323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11070176 + 11070177.

It is an arithmetic number, because the mean of its divisors is an integer number (11070177).

Almost surely, 2^22140353 is an apocalyptic number.

It is an amenable number.

22140353 is a deficient number, since it is larger than the sum of its proper divisors (1).

22140353 is an equidigital number, since it uses as much as digits as its factorization.

22140353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22140353 is about 4705.3536530212. The cubic root of 22140353 is about 280.7985410283.

Adding to 22140353 its reverse (35304122), we get a palindrome (57444475).

The spelling of 22140353 in words is "twenty-two million, one hundred forty thousand, three hundred fifty-three".