121055744 has 80 divisors (see below), whose sum is σ = 259269120. Its totient is φ = 56340480.

The previous prime is 121055743. The next prime is 121055747. The reversal of 121055744 is 447550121.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (121055741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460157 + ... + 460419.

It is an arithmetic number, because the mean of its divisors is an integer number (3240864).

Almost surely, 2^121055744 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 121055744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129634560).

121055744 is an abundant number, since it is smaller than the sum of its proper divisors (138213376).

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

121055744 is an equidigital number, since it uses as much as digits as its factorization.

121055744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 121055744 is about 11002.5335264202. The cubic root of 121055744 is about 494.6846871263.

The spelling of 121055744 in words is "one hundred twenty-one million, fifty-five thousand, seven hundred forty-four".