121982984 has 16 divisors (see below), whose sum is σ = 238662720. Its totient is φ = 58339600.

The previous prime is 121982957. The next prime is 121982989. The reversal of 121982984 is 489289121.

It is not an unprimeable number, because it can be changed into a prime (121982989) 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, 331292 + ... + 331659.

It is an arithmetic number, because the mean of its divisors is an integer number (14916420).

Almost surely, 2^121982984 is an apocalyptic number.

It is an amenable number.

121982984 is a deficient number, since it is larger than the sum of its proper divisors (116679736).

121982984 is a wasteful number, since it uses less digits than its factorization.

121982984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662980 (or 662976 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 121982984 is about 11044.5907121993. The cubic root of 121982984 is about 495.9445068856.

The spelling of 121982984 in words is "one hundred twenty-one million, nine hundred eighty-two thousand, nine hundred eighty-four".