122471688 has 64 divisors (see below), whose sum is σ = 322191360. Its totient is φ = 38719296.

The previous prime is 122471677. The next prime is 122471693. The reversal of 122471688 is 886174221.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 69231 + ... + 70977.

It is an arithmetic number, because the mean of its divisors is an integer number (5034240).

Almost surely, 2^122471688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122471688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161095680).

122471688 is an abundant number, since it is smaller than the sum of its proper divisors (199719672).

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

122471688 is a wasteful number, since it uses less digits than its factorization.

122471688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1902 counting only the distinct ones).

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

The square root of 122471688 is about 11066.6927308930. The cubic root of 122471688 is about 496.6059300432.

The spelling of 122471688 in words is "one hundred twenty-two million, four hundred seventy-one thousand, six hundred eighty-eight".