121542876 has 192 divisors, whose sum is σ = 395136000. Its totient is φ = 31456512.

The previous prime is 121542797. The next prime is 121542923. The reversal of 121542876 is 678245121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 121542876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 815650 + ... + 815798.

It is an arithmetic number, because the mean of its divisors is an integer number (2058000).

Almost surely, 2^121542876 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 121542876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197568000).

121542876 is an abundant number, since it is smaller than the sum of its proper divisors (273593124).

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

121542876 is a wasteful number, since it uses less digits than its factorization.

121542876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 257 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 121542876 is about 11024.6485658274. The cubic root of 121542876 is about 495.3473411543.

Adding to 121542876 its reverse (678245121), we get a palindrome (799787997).

The spelling of 121542876 in words is "one hundred twenty-one million, five hundred forty-two thousand, eight hundred seventy-six".