121708608 has 112 divisors (see below), whose sum is σ = 371270784. Its totient is φ = 34467840.

The previous prime is 121708597. The next prime is 121708673. The reversal of 121708608 is 806807121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×121708608² = 29625970522595328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183798 + ... + 184458.

Almost surely, 2^121708608 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 121708608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185635392).

121708608 is an abundant number, since it is smaller than the sum of its proper divisors (249562176).

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

121708608 is a wasteful number, since it uses less digits than its factorization.

121708608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 121708608 is about 11032.1624353524. The cubic root of 121708608 is about 495.5723855240.

The spelling of 121708608 in words is "one hundred twenty-one million, seven hundred eight thousand, six hundred eight".