122518 has 8 divisors (see below), whose sum is σ = 200520. Its totient is φ = 55680.

The previous prime is 122509. The next prime is 122527. The reversal of 122518 is 815221.

It is an interprime number because it is at equal distance from previous prime (122509) and next prime (122527).

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 = 122495 and 122504.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2763 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (25065).

2¹²²⁵¹⁸ is an apocalyptic number.

122518 is a deficient number, since it is larger than the sum of its proper divisors (78002).

122518 is a wasteful number, since it uses less digits than its factorization.

122518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582.

The product of its digits is 160, while the sum is 19.

The square root of 122518 is about 350.0257133412. The cubic root of 122518 is about 49.6668518428. Note that the first 3 decimals are identical.

Adding to 122518 its reverse (815221), we get a palindrome (937739).

The spelling of 122518 in words is "one hundred twenty-two thousand, five hundred eighteen".