121656048 has 20 divisors (see below), whose sum is σ = 314278248. Its totient is φ = 40552000.

The previous prime is 121656043. The next prime is 121656049. The reversal of 121656048 is 840656121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121656043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267203 + ... + 1267298.

Almost surely, 2^121656048 is an apocalyptic number.

It is an amenable number.

121656048 is an abundant number, since it is smaller than the sum of its proper divisors (192622200).

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

121656048 is a wasteful number, since it uses less digits than its factorization.

121656048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534512 (or 2534506 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 121656048 is about 11029.7800522041. The cubic root of 121656048 is about 495.5010374207.

The spelling of 121656048 in words is "one hundred twenty-one million, six hundred fifty-six thousand, forty-eight".