121807968 has 48 divisors (see below), whose sum is σ = 320314176. Its totient is φ = 40530560.

The previous prime is 121807957. The next prime is 121807969. The reversal of 121807968 is 869708121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121807969) 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, 104155 + ... + 105317.

It is an arithmetic number, because the mean of its divisors is an integer number (6673212).

Almost surely, 2^121807968 is an apocalyptic number.

It is an amenable number.

121807968 is an abundant number, since it is smaller than the sum of its proper divisors (198506208).

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

121807968 is a wasteful number, since it uses less digits than its factorization.

121807968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 121807968 is about 11036.6647135808. The cubic root of 121807968 is about 495.7072066613.

The spelling of 121807968 in words is "one hundred twenty-one million, eight hundred seven thousand, nine hundred sixty-eight".