121555048 has 16 divisors (see below), whose sum is σ = 228495780. Its totient is φ = 60622848.

The previous prime is 121555013. The next prime is 121555073. The reversal of 121555048 is 840555121.

It can be written as a sum of positive squares in 2 ways, for example, as 109872324 + 11682724 = 10482^2 + 3418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15961 + ... + 22312.

Almost surely, 2^121555048 is an apocalyptic number.

It is an amenable number.

121555048 is a deficient number, since it is larger than the sum of its proper divisors (106940732).

121555048 is a wasteful number, since it uses less digits than its factorization.

121555048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38676 (or 38672 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 121555048 is about 11025.2005877444. The cubic root of 121555048 is about 495.3638762426.

The spelling of 121555048 in words is "one hundred twenty-one million, five hundred fifty-five thousand, forty-eight".