122146709 has 2 divisors, whose sum is σ = 122146710. Its totient is φ = 122146708.

The previous prime is 122146699. The next prime is 122146711. The reversal of 122146709 is 907641221.

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., 121660900 + 485809 = 11030^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 122146709 - 2¹⁶ = 122081173 is a prime.

Together with 122146711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122146729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61073354 + 61073355.

It is an arithmetic number, because the mean of its divisors is an integer number (61073355).

Almost surely, 2^122146709 is an apocalyptic number.

It is an amenable number.

122146709 is a deficient number, since it is larger than the sum of its proper divisors (1).

122146709 is an equidigital number, since it uses as much as digits as its factorization.

122146709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 122146709 is about 11052.0002262034. Note that the first 3 decimals coincide. The cubic root of 122146709 is about 496.1662925006.

The spelling of 122146709 in words is "one hundred twenty-two million, one hundred forty-six thousand, seven hundred nine".