122658648 has 32 divisors (see below), whose sum is σ = 350453760. Its totient is φ = 35045280.

The previous prime is 122658631. The next prime is 122658707. The reversal of 122658648 is 846856221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 364888 + ... + 365223.

It is an arithmetic number, because the mean of its divisors is an integer number (10951680).

Almost surely, 2^122658648 is an apocalyptic number.

It is an amenable number.

122658648 is an abundant number, since it is smaller than the sum of its proper divisors (227795112).

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

122658648 is a wasteful number, since it uses less digits than its factorization.

122658648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730127 (or 730123 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 122658648 is about 11075.1364777144. The cubic root of 122658648 is about 496.8585006348.

The spelling of 122658648 in words is "one hundred twenty-two million, six hundred fifty-eight thousand, six hundred forty-eight".