121296856 has 8 divisors (see below), whose sum is σ = 227431620. Its totient is φ = 60648424.

The previous prime is 121296839. The next prime is 121296863. The reversal of 121296856 is 658692121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7581046 + ... + 7581061.

Almost surely, 2^121296856 is an apocalyptic number.

It is an amenable number.

121296856 is a deficient number, since it is larger than the sum of its proper divisors (106134764).

121296856 is a wasteful number, since it uses less digits than its factorization.

121296856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162113 (or 15162109 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 121296856 is about 11013.4851886222. The cubic root of 121296856 is about 495.0128976675.

The spelling of 121296856 in words is "one hundred twenty-one million, two hundred ninety-six thousand, eight hundred fifty-six".