121484779 has 8 divisors (see below), whose sum is σ = 131164880. Its totient is φ = 111852576.

The previous prime is 121484777. The next prime is 121484789. The reversal of 121484779 is 977484121.

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 121484779 - 2¹ = 121484777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121484777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6609 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (16395610).

Almost surely, 2^121484779 is an apocalyptic number.

121484779 is a deficient number, since it is larger than the sum of its proper divisors (9680101).

121484779 is a wasteful number, since it uses less digits than its factorization.

121484779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23949.

The product of its digits is 112896, while the sum is 43.

The square root of 121484779 is about 11022.0133823181. The cubic root of 121484779 is about 495.2684039048.

The spelling of 121484779 in words is "one hundred twenty-one million, four hundred eighty-four thousand, seven hundred seventy-nine".