122148678 has 16 divisors (see below), whose sum is σ = 244555776. Its totient is φ = 40673160.

The previous prime is 122148661. The next prime is 122148709. The reversal of 122148678 is 876841221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4326 + ... + 16217.

It is an arithmetic number, because the mean of its divisors is an integer number (15284736).

Almost surely, 2^122148678 is an apocalyptic number.

122148678 is an abundant number, since it is smaller than the sum of its proper divisors (122407098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122148678 is a wasteful number, since it uses less digits than its factorization.

122148678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21539.

The product of its digits is 43008, while the sum is 39.

The square root of 122148678 is about 11052.0893047423. The cubic root of 122148678 is about 496.1689585464.

Adding to 122148678 its reverse (876841221), we get a palindrome (998989899).

The spelling of 122148678 in words is "one hundred twenty-two million, one hundred forty-eight thousand, six hundred seventy-eight".