121193256 has 64 divisors (see below), whose sum is σ = 318165120. Its totient is φ = 38396160.

The previous prime is 121193251. The next prime is 121193263. The reversal of 121193256 is 652391121.

It is not an unprimeable number, because it can be changed into a prime (121193251) 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, 99306 + ... + 100518.

It is an arithmetic number, because the mean of its divisors is an integer number (4971330).

Almost surely, 2^121193256 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 121193256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159082560).

121193256 is an abundant number, since it is smaller than the sum of its proper divisors (196971864).

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

121193256 is a wasteful number, since it uses less digits than its factorization.

121193256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1422 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 121193256 is about 11008.7808589326. The cubic root of 121193256 is about 494.8719268701.

The spelling of 121193256 in words is "one hundred twenty-one million, one hundred ninety-three thousand, two hundred fifty-six".