121053856 has 96 divisors (see below), whose sum is σ = 301650048. Its totient is φ = 46448640.

The previous prime is 121053839. The next prime is 121053869. The reversal of 121053856 is 658350121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179536 + ... + 180208.

It is an arithmetic number, because the mean of its divisors is an integer number (3142188).

Almost surely, 2^121053856 is an apocalyptic number.

121053856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121053856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150825024).

121053856 is an abundant number, since it is smaller than the sum of its proper divisors (180596192).

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

121053856 is a wasteful number, since it uses less digits than its factorization.

121053856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 121053856 is about 11002.4477276650. The cubic root of 121053856 is about 494.6821153922.

The spelling of 121053856 in words is "one hundred twenty-one million, fifty-three thousand, eight hundred fifty-six".