121773696 has 128 divisors (see below), whose sum is σ = 357212160. Its totient is φ = 36449280.

The previous prime is 121773689. The next prime is 121773719. The reversal of 121773696 is 696377121.

It is a tau number, because it is divible by the number of its divisors (128).

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, 536335 + ... + 536561.

It is an arithmetic number, because the mean of its divisors is an integer number (2790720).

Almost surely, 2^121773696 is an apocalyptic number.

121773696 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 121773696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178606080).

121773696 is an abundant number, since it is smaller than the sum of its proper divisors (235438464).

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

121773696 is a wasteful number, since it uses less digits than its factorization.

121773696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 370 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 121773696 is about 11035.1119613713. Note that the first 3 decimals coincide. The cubic root of 121773696 is about 495.6607114244.

The spelling of 121773696 in words is "one hundred twenty-one million, seven hundred seventy-three thousand, six hundred ninety-six".