121971848 has 8 divisors (see below), whose sum is σ = 228697230. Its totient is φ = 60985920.

The previous prime is 121971803. The next prime is 121971877. The reversal of 121971848 is 848179121.

It can be written as a sum of positive squares in only one way, i.e., 66945124 + 55026724 = 8182^2 + 7418^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7623233 + ... + 7623248.

Almost surely, 2^121971848 is an apocalyptic number.

It is an amenable number.

121971848 is a deficient number, since it is larger than the sum of its proper divisors (106725382).

121971848 is a wasteful number, since it uses less digits than its factorization.

121971848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15246487 (or 15246483 counting only the distinct ones).

The product of its digits is 32256, while the sum is 41.

The square root of 121971848 is about 11044.0865625003. The cubic root of 121971848 is about 495.9294146000.

The spelling of 121971848 in words is "one hundred twenty-one million, nine hundred seventy-one thousand, eight hundred forty-eight".