122918 has 8 divisors (see below), whose sum is σ = 189000. Its totient is φ = 59920.

The previous prime is 122891. The next prime is 122921. The reversal of 122918 is 819221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 122893 and 122902.

It is a congruent number.

It is an unprimeable number.

122918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668 + ... + 831.

It is an arithmetic number, because the mean of its divisors is an integer number (23625).

2¹²²⁹¹⁸ is an apocalyptic number.

122918 is a deficient number, since it is larger than the sum of its proper divisors (66082).

122918 is a wasteful number, since it uses less digits than its factorization.

122918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542.

The product of its digits is 288, while the sum is 23.

The square root of 122918 is about 350.5966343250. The cubic root of 122918 is about 49.7208443429.

It can be divided in two parts, 1229 and 18, that multiplied together give a palindrome (22122).

The spelling of 122918 in words is "one hundred twenty-two thousand, nine hundred eighteen".