122340709 has 2 divisors, whose sum is σ = 122340710. Its totient is φ = 122340708.

The previous prime is 122340661. The next prime is 122340767. The reversal of 122340709 is 907043221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64352484 + 57988225 = 8022^2 + 7615^2 .

It is a cyclic number.

It is not a de Polignac number, because 122340709 - 2¹¹ = 122338661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122340409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61170354 + 61170355.

It is an arithmetic number, because the mean of its divisors is an integer number (61170355).

Almost surely, 2^122340709 is an apocalyptic number.

It is an amenable number.

122340709 is a deficient number, since it is larger than the sum of its proper divisors (1).

122340709 is an equidigital number, since it uses as much as digits as its factorization.

122340709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 122340709 is about 11060.7734358859. The cubic root of 122340709 is about 496.4288329233.

The spelling of 122340709 in words is "one hundred twenty-two million, three hundred forty thousand, seven hundred nine".