23122247 has 2 divisors, whose sum is σ = 23122248. Its totient is φ = 23122246.

The previous prime is 23122243. The next prime is 23122283. The reversal of 23122247 is 74222132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23122247 - 2² = 23122243 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23122241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561123 + 11561124.

It is an arithmetic number, because the mean of its divisors is an integer number (11561124).

Almost surely, 2^23122247 is an apocalyptic number.

23122247 is a deficient number, since it is larger than the sum of its proper divisors (1).

23122247 is an equidigital number, since it uses as much as digits as its factorization.

23122247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 23.

The square root of 23122247 is about 4808.5597635883. The cubic root of 23122247 is about 284.8896546251.

Adding to 23122247 its reverse (74222132), we get a palindrome (97344379).

The spelling of 23122247 in words is "twenty-three million, one hundred twenty-two thousand, two hundred forty-seven".