122716009 has 8 divisors (see below), whose sum is σ = 132888392. Its totient is φ = 112648320.

The previous prime is 122716007. The next prime is 122716019. The reversal of 122716009 is 900617221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4515625 + 118200384 = 2125^2 + 10872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122716009 - 2¹ = 122716007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122716001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23724 + ... + 28429.

It is an arithmetic number, because the mean of its divisors is an integer number (16611049).

Almost surely, 2^122716009 is an apocalyptic number.

It is an amenable number.

122716009 is a deficient number, since it is larger than the sum of its proper divisors (10172383).

122716009 is a wasteful number, since it uses less digits than its factorization.

122716009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52347.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 122716009 is about 11077.7258045142. The cubic root of 122716009 is about 496.9359400962.

The spelling of 122716009 in words is "one hundred twenty-two million, seven hundred sixteen thousand, nine".