121560448 has 16 divisors (see below), whose sum is σ = 242171460. Its totient is φ = 60780160.

The previous prime is 121560433. The next prime is 121560457. The reversal of 121560448 is 844065121.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474718 + ... + 474973.

Almost surely, 2^121560448 is an apocalyptic number.

It is an amenable number.

121560448 is a deficient number, since it is larger than the sum of its proper divisors (120611012).

121560448 is an frugal number, since it uses more digits than its factorization.

121560448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949705 (or 949693 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 121560448 is about 11025.4454785283. The cubic root of 121560448 is about 495.3712115346.

The spelling of 121560448 in words is "one hundred twenty-one million, five hundred sixty thousand, four hundred forty-eight".