122669 has 4 divisors (see below), whose sum is σ = 123420. Its totient is φ = 121920.

The previous prime is 122663. The next prime is 122693. The reversal of 122669 is 966221.

122669 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 96100 + 26569 = 310^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 122669 - 2⁴ = 122653 is a prime.

It is a super-2 number, since 2×122669² = 30095367122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 495.

It is an arithmetic number, because the mean of its divisors is an integer number (30855).

2¹²²⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

122669 is a deficient number, since it is larger than the sum of its proper divisors (751).

122669 is an equidigital number, since it uses as much as digits as its factorization.

122669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750.

The product of its digits is 1296, while the sum is 26.

The square root of 122669 is about 350.2413453606. The cubic root of 122669 is about 49.6872478001.

It can be divided in two parts, 122 and 669, that multiplied together give a palindrome (81618).

The spelling of 122669 in words is "one hundred twenty-two thousand, six hundred sixty-nine".