122678 has 4 divisors (see below), whose sum is σ = 184020. Its totient is φ = 61338.

The previous prime is 122663. The next prime is 122693. The reversal of 122678 is 876221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122663) and next prime (122693).

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

122678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30668 + ... + 30671.

It is an arithmetic number, because the mean of its divisors is an integer number (46005).

2¹²²⁶⁷⁸ is an apocalyptic number.

122678 is a deficient number, since it is larger than the sum of its proper divisors (61342).

122678 is an equidigital number, since it uses as much as digits as its factorization.

122678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61341.

The product of its digits is 1344, while the sum is 26.

The square root of 122678 is about 350.2541934082. The cubic root of 122678 is about 49.6884629245.

Adding to 122678 its reverse (876221), we get a palindrome (998899).

The spelling of 122678 in words is "one hundred twenty-two thousand, six hundred seventy-eight".