121448188 has 24 divisors (see below), whose sum is σ = 226501632. Its totient is φ = 56846064.

The previous prime is 121448167. The next prime is 121448189. The reversal of 121448188 is 881844121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121448189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9720 + ... + 18367.

It is an arithmetic number, because the mean of its divisors is an integer number (9437568).

Almost surely, 2^121448188 is an apocalyptic number.

It is an amenable number.

121448188 is a deficient number, since it is larger than the sum of its proper divisors (105053444).

121448188 is a wasteful number, since it uses less digits than its factorization.

121448188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28161 (or 28159 counting only the distinct ones).

The product of its digits is 16384, while the sum is 37.

The square root of 121448188 is about 11020.3533518667. The cubic root of 121448188 is about 495.2186742566.

The spelling of 121448188 in words is "one hundred twenty-one million, four hundred forty-eight thousand, one hundred eighty-eight".