121878748 has 24 divisors (see below), whose sum is σ = 222985728. Its totient is φ = 58178736.

The previous prime is 121878739. The next prime is 121878769. The reversal of 121878748 is 847878121.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 121878698 and 121878707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67465 + ... + 69247.

It is an arithmetic number, because the mean of its divisors is an integer number (9291072).

Almost surely, 2^121878748 is an apocalyptic number.

It is an amenable number.

121878748 is a deficient number, since it is larger than the sum of its proper divisors (101106980).

121878748 is a wasteful number, since it uses less digits than its factorization.

121878748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553 (or 2551 counting only the distinct ones).

The product of its digits is 200704, while the sum is 46.

The square root of 121878748 is about 11039.8708325777. The cubic root of 121878748 is about 495.8032030150.

The spelling of 121878748 in words is "one hundred twenty-one million, eight hundred seventy-eight thousand, seven hundred forty-eight".