121734912 has 144 divisors (see below), whose sum is σ = 355410720. Its totient is φ = 36765696.

The previous prime is 121734901. The next prime is 121734941. The reversal of 121734912 is 219437121.

It is a self number, because there is not a number n which added to its sum of digits gives 121734912.

It is a congruent number.

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, 888508 + ... + 888644.

It is an arithmetic number, because the mean of its divisors is an integer number (2468130).

Almost surely, 2^121734912 is an apocalyptic number.

121734912 is a gapful number since it is divisible by the number (12) 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 121734912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177705360).

121734912 is an abundant number, since it is smaller than the sum of its proper divisors (233675808).

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

121734912 is a wasteful number, since it uses less digits than its factorization.

121734912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 244 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 121734912 is about 11033.3545216312. The cubic root of 121734912 is about 495.6080844426.

The spelling of 121734912 in words is "one hundred twenty-one million, seven hundred thirty-four thousand, nine hundred twelve".