121988084 has 12 divisors (see below), whose sum is σ = 213590244. Its totient is φ = 60962304.

The previous prime is 121988081. The next prime is 121988089. The reversal of 121988084 is 480889121.

It can be written as a sum of positive squares in 2 ways, for example, as 91738084 + 30250000 = 9578^2 + 5500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121988081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2132 + ... + 15764.

It is an arithmetic number, because the mean of its divisors is an integer number (17799187).

Almost surely, 2^121988084 is an apocalyptic number.

It is an amenable number.

121988084 is a deficient number, since it is larger than the sum of its proper divisors (91602160).

121988084 is a wasteful number, since it uses less digits than its factorization.

121988084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15874 (or 15872 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 41.

The square root of 121988084 is about 11044.8215920403. The cubic root of 121988084 is about 495.9514184554.

The spelling of 121988084 in words is "one hundred twenty-one million, nine hundred eighty-eight thousand, eighty-four".