122706 has 24 divisors (see below), whose sum is σ = 282204. Its totient is φ = 38400.

The previous prime is 122701. The next prime is 122719. The reversal of 122706 is 607221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95481 + 27225 = 309^2 + 165^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 122706.

It is not an unprimeable number, because it can be changed into a prime (122701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106 + ... + 506.

2¹²²⁷⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141102).

122706 is an abundant number, since it is smaller than the sum of its proper divisors (159498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122706 is a wasteful number, since it uses less digits than its factorization.

122706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 122706 is about 350.2941620981. The cubic root of 122706 is about 49.6922429316.

Adding to 122706 its reverse (607221), we get a palindrome (729927).

It can be divided in two parts, 122 and 706, that added together give a palindrome (828).

The spelling of 122706 in words is "one hundred twenty-two thousand, seven hundred six".