121768608 has 48 divisors (see below), whose sum is σ = 344234016. Its totient is φ = 37466880.

The previous prime is 121768597. The next prime is 121768609. The reversal of 121768608 is 806867121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (121768609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47538 + ... + 50033.

It is an arithmetic number, because the mean of its divisors is an integer number (7171542).

Almost surely, 2^121768608 is an apocalyptic number.

It is an amenable number.

121768608 is an abundant number, since it is smaller than the sum of its proper divisors (222465408).

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

121768608 is a wasteful number, since it uses less digits than its factorization.

121768608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97597 (or 97589 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 121768608 is about 11034.8814221087. The cubic root of 121768608 is about 495.6538080265.

The spelling of 121768608 in words is "one hundred twenty-one million, seven hundred sixty-eight thousand, six hundred eight".