121055064 has 64 divisors (see below), whose sum is σ = 330839040. Its totient is φ = 36685440.

The previous prime is 121055063. The next prime is 121055087. The reversal of 121055064 is 460550121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121055063) 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, 18009 + ... + 23799.

It is an arithmetic number, because the mean of its divisors is an integer number (5169360).

Almost surely, 2^121055064 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 121055064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165419520).

121055064 is an abundant number, since it is smaller than the sum of its proper divisors (209783976).

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

121055064 is a wasteful number, since it uses less digits than its factorization.

121055064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 121055064 is about 11002.5026244032. The cubic root of 121055064 is about 494.6837608692.

The spelling of 121055064 in words is "one hundred twenty-one million, fifty-five thousand, sixty-four".