121899483 has 6 divisors (see below), whose sum is σ = 176077044. Its totient is φ = 81266316.

The previous prime is 121899461. The next prime is 121899511. The reversal of 121899483 is 384998121.

It is not a de Polignac number, because 121899483 - 2⁵ = 121899451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121899443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6772185 + ... + 6772202.

It is an arithmetic number, because the mean of its divisors is an integer number (29346174).

Almost surely, 2^121899483 is an apocalyptic number.

121899483 is a deficient number, since it is larger than the sum of its proper divisors (54177561).

121899483 is a wasteful number, since it uses less digits than its factorization.

121899483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13544393 (or 13544390 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 121899483 is about 11040.8098887717. The cubic root of 121899483 is about 495.8313181065.

The spelling of 121899483 in words is "one hundred twenty-one million, eight hundred ninety-nine thousand, four hundred eighty-three".