122665117 has 4 divisors (see below), whose sum is σ = 124217920. Its totient is φ = 121112316.

The previous prime is 122665097. The next prime is 122665163. The reversal of 122665117 is 711566221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122665117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122665177) 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 in 3 ways as a sum of consecutive naturals, for example, 776283 + ... + 776440.

It is an arithmetic number, because the mean of its divisors is an integer number (31054480).

Almost surely, 2^122665117 is an apocalyptic number.

It is an amenable number.

122665117 is a deficient number, since it is larger than the sum of its proper divisors (1552803).

122665117 is an equidigital number, since it uses as much as digits as its factorization.

122665117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552802.

The product of its digits is 5040, while the sum is 31.

The square root of 122665117 is about 11075.4285244409. The cubic root of 122665117 is about 496.8672352306.

The spelling of 122665117 in words is "one hundred twenty-two million, six hundred sixty-five thousand, one hundred seventeen".