121980608 has 28 divisors (see below), whose sum is σ = 254797560. Its totient is φ = 57779712.

The previous prime is 121980587. The next prime is 121980611. The reversal of 121980608 is 806089121.

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 3 ways as a sum of consecutive naturals, for example, 48941 + ... + 51372.

Almost surely, 2^121980608 is an apocalyptic number.

It is an amenable number.

121980608 is an abundant number, since it is smaller than the sum of its proper divisors (132816952).

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

121980608 is a wasteful number, since it uses less digits than its factorization.

121980608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100344 (or 100334 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 121980608 is about 11044.4831477077. The cubic root of 121980608 is about 495.9412868414.

The spelling of 121980608 in words is "one hundred twenty-one million, nine hundred eighty thousand, six hundred eight".