121656846 has 8 divisors (see below), whose sum is σ = 243313704. Its totient is φ = 40552280.

The previous prime is 121656833. The next prime is 121656853. The reversal of 121656846 is 648656121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

121656846 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 10138065 + ... + 10138076.

It is an arithmetic number, because the mean of its divisors is an integer number (30414213).

Almost surely, 2^121656846 is an apocalyptic number.

121656846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121656846 is a wasteful number, since it uses less digits than its factorization.

121656846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20276146.

The product of its digits is 69120, while the sum is 39.

The square root of 121656846 is about 11029.8162269369. The cubic root of 121656846 is about 495.5021208275.

The spelling of 121656846 in words is "one hundred twenty-one million, six hundred fifty-six thousand, eight hundred forty-six".