121384648 has 64 divisors (see below), whose sum is σ = 285505920. Its totient is φ = 47001600.

The previous prime is 121384631. The next prime is 121384649. The reversal of 121384648 is 846483121.

It is not an unprimeable number, because it can be changed into a prime (121384649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118378 + ... + 119398.

It is an arithmetic number, because the mean of its divisors is an integer number (4461030).

Almost surely, 2^121384648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121384648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142752960).

121384648 is an abundant number, since it is smaller than the sum of its proper divisors (164121272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121384648 is a wasteful number, since it uses less digits than its factorization.

121384648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1234 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 121384648 is about 11017.4701270301. The cubic root of 121384648 is about 495.1322953537.

The spelling of 121384648 in words is "one hundred twenty-one million, three hundred eighty-four thousand, six hundred forty-eight".