122731165 has 8 divisors (see below), whose sum is σ = 155028960. Its totient is φ = 93017232.

The previous prime is 122731153. The next prime is 122731181. The reversal of 122731165 is 561137221.

It is a happy number.

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 122731165 - 2¹³ = 122722973 is a prime.

It is a congruent number.

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, 645859 + ... + 646048.

It is an arithmetic number, because the mean of its divisors is an integer number (19378620).

Almost surely, 2^122731165 is an apocalyptic number.

It is an amenable number.

122731165 is a deficient number, since it is larger than the sum of its proper divisors (32297795).

122731165 is a wasteful number, since it uses less digits than its factorization.

122731165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291931.

The product of its digits is 2520, while the sum is 28.

The square root of 122731165 is about 11078.4098588200. The cubic root of 122731165 is about 496.9563972236.

Adding to 122731165 its reverse (561137221), we get a palindrome (683868386).

The spelling of 122731165 in words is "one hundred twenty-two million, seven hundred thirty-one thousand, one hundred sixty-five".