23122609 has 2 divisors, whose sum is σ = 23122610. Its totient is φ = 23122608.

The previous prime is 23122607. The next prime is 23122709. The reversal of 23122609 is 90622132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13838400 + 9284209 = 3720^2 + 3047^2 .

It is a cyclic number.

It is not a de Polignac number, because 23122609 - 2¹ = 23122607 is a prime.

Together with 23122607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23122607) 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, 11561304 + 11561305.

It is an arithmetic number, because the mean of its divisors is an integer number (11561305).

Almost surely, 2^23122609 is an apocalyptic number.

It is an amenable number.

23122609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23122609 is an equidigital number, since it uses as much as digits as its factorization.

23122609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23122609 is about 4808.5974046493. The cubic root of 23122609 is about 284.8911413537.

The spelling of 23122609 in words is "twenty-three million, one hundred twenty-two thousand, six hundred nine".