122312665 has 8 divisors (see below), whose sum is σ = 146873160. Its totient is φ = 97784832.

The previous prime is 122312657. The next prime is 122312681. The reversal of 122312665 is 566213221.

It can be written as a sum of positive squares in 4 ways, for example, as 50537881 + 71774784 = 7109^2 + 8472^2 .

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 122312665 - 2³ = 122312657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017 + ... + 15673.

It is an arithmetic number, because the mean of its divisors is an integer number (18359145).

Almost surely, 2^122312665 is an apocalyptic number.

It is an amenable number.

122312665 is a deficient number, since it is larger than the sum of its proper divisors (24560495).

122312665 is a wasteful number, since it uses less digits than its factorization.

122312665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16331.

The product of its digits is 4320, while the sum is 28.

The square root of 122312665 is about 11059.5056399461. The cubic root of 122312665 is about 496.3908981149.

Adding to 122312665 its reverse (566213221), we get a palindrome (688525886).

The spelling of 122312665 in words is "one hundred twenty-two million, three hundred twelve thousand, six hundred sixty-five".