122879 has 4 divisors (see below), whose sum is σ = 124176. Its totient is φ = 121584.

The previous prime is 122869. The next prime is 122887. The reversal of 122879 is 978221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978221 = 53 ⋅18457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122879 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122819) 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, 494 + ... + 699.

It is an arithmetic number, because the mean of its divisors is an integer number (31044).

2¹²²⁸⁷⁹ is an apocalyptic number.

122879 is a deficient number, since it is larger than the sum of its proper divisors (1297).

122879 is a wasteful number, since it uses less digits than its factorization.

122879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 2016, while the sum is 29.

The square root of 122879 is about 350.5410104396. The cubic root of 122879 is about 49.7155852324.

It can be divided in two parts, 122 and 879, that added together give a palindrome (1001).

The spelling of 122879 in words is "one hundred twenty-two thousand, eight hundred seventy-nine".