121986080 has 48 divisors (see below), whose sum is σ = 303367680. Its totient is φ = 46225152.

The previous prime is 121986079. The next prime is 121986097. The reversal of 121986080 is 80689121.

It is a self number, because there is not a number n which added to its sum of digits gives 121986080.

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 7 ways as a sum of consecutive naturals, for example, 17024 + ... + 23103.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^121986080 is an apocalyptic number.

121986080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121986080 is an abundant number, since it is smaller than the sum of its proper divisors (181381600).

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

121986080 is a wasteful number, since it uses less digits than its factorization.

121986080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40161 (or 40153 counting only the distinct ones).

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

The square root of 121986080 is about 11044.7308704196. The cubic root of 121986080 is about 495.9487026380.

The spelling of 121986080 in words is "one hundred twenty-one million, nine hundred eighty-six thousand, eighty".