121983481 has 8 divisors (see below), whose sum is σ = 126828800. Its totient is φ = 117195120.

The previous prime is 121983479. The next prime is 121983493. The reversal of 121983481 is 184389121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121983481 - 2¹ = 121983479 is a prime.

It is a super-2 number, since 2×121983481² = 29759939273754722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121983481.

It is not an unprimeable number, because it can be changed into a prime (121983431) 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, 9846 + ... + 18463.

It is an arithmetic number, because the mean of its divisors is an integer number (15853600).

Almost surely, 2^121983481 is an apocalyptic number.

It is an amenable number.

121983481 is a deficient number, since it is larger than the sum of its proper divisors (4845319).

121983481 is a wasteful number, since it uses less digits than its factorization.

121983481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28479.

The product of its digits is 13824, while the sum is 37.

The square root of 121983481 is about 11044.6132118784. The cubic root of 121983481 is about 495.9451804333.

The spelling of 121983481 in words is "one hundred twenty-one million, nine hundred eighty-three thousand, four hundred eighty-one".