121563160 has 32 divisors (see below), whose sum is σ = 274408560. Its totient is φ = 48466816.

The previous prime is 121563149. The next prime is 121563161. The reversal of 121563160 is 61365121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121563161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7887 + ... + 17473.

Almost surely, 2^121563160 is an apocalyptic number.

121563160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121563160 is an abundant number, since it is smaller than the sum of its proper divisors (152845400).

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

121563160 is a wasteful number, since it uses less digits than its factorization.

121563160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915 (or 9911 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 121563160 is about 11025.5684660701. The cubic root of 121563160 is about 495.3748953993.

The spelling of 121563160 in words is "one hundred twenty-one million, five hundred sixty-three thousand, one hundred sixty".