122716605 has 32 divisors (see below), whose sum is σ = 219996288. Its totient is φ = 57888000.

The previous prime is 122716553. The next prime is 122716609. The reversal of 122716605 is 506617221.

It is not a de Polignac number, because 122716605 - 2⁹ = 122716093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122716609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3946 + ... + 16155.

It is an arithmetic number, because the mean of its divisors is an integer number (6874884).

Almost surely, 2^122716605 is an apocalyptic number.

122716605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122716605 is a deficient number, since it is larger than the sum of its proper divisors (97279683).

122716605 is a wasteful number, since it uses less digits than its factorization.

122716605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20157.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 122716605 is about 11077.7527053099. The cubic root of 122716605 is about 496.9367445915.

It can be divided in two parts, 122716 and 605, that added together give a palindrome (123321).

The spelling of 122716605 in words is "one hundred twenty-two million, seven hundred sixteen thousand, six hundred five".