122148679 has 4 divisors (see below), whose sum is σ = 122353200. Its totient is φ = 121944160.

The previous prime is 122148661. The next prime is 122148709. The reversal of 122148679 is 976841221.

122148679 is nontrivially palindromic in base 16.

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

It is a cyclic number.

It is not a de Polignac number, because 122148679 - 2²³ = 113760071 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122148379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101362 + ... + 102559.

It is an arithmetic number, because the mean of its divisors is an integer number (30588300).

Almost surely, 2^122148679 is an apocalyptic number.

122148679 is a deficient number, since it is larger than the sum of its proper divisors (204521).

122148679 is an equidigital number, since it uses as much as digits as its factorization.

122148679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204520.

The product of its digits is 48384, while the sum is 40.

The square root of 122148679 is about 11052.0893499827. The cubic root of 122148679 is about 496.1689599004.

The spelling of 122148679 in words is "one hundred twenty-two million, one hundred forty-eight thousand, six hundred seventy-nine".