22134247 has 2 divisors, whose sum is σ = 22134248. Its totient is φ = 22134246.

The previous prime is 22134209. The next prime is 22134253. The reversal of 22134247 is 74243122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22134247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22134647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11067123 + 11067124.

It is an arithmetic number, because the mean of its divisors is an integer number (11067124).

Almost surely, 2^22134247 is an apocalyptic number.

22134247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22134247 is an equidigital number, since it uses as much as digits as its factorization.

22134247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 25.

The square root of 22134247 is about 4704.7047728843. The cubic root of 22134247 is about 280.7727252169.

Adding to 22134247 its reverse (74243122), we get a palindrome (96377369).

The spelling of 22134247 in words is "twenty-two million, one hundred thirty-four thousand, two hundred forty-seven".