121455360 has 216 divisors, whose sum is σ = 453105744. Its totient is φ = 29859840.

The previous prime is 121455343. The next prime is 121455371. The reversal of 121455360 is 63554121.

121455360 is a `hidden beast` number, since 121 + 4 + 5 + 536 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149355 + ... + 150165.

Almost surely, 2^121455360 is an apocalyptic number.

121455360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121455360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226552872).

121455360 is an abundant number, since it is smaller than the sum of its proper divisors (331650384).

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

121455360 is a wasteful number, since it uses less digits than its factorization.

121455360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 121455360 is about 11020.6787449776. The cubic root of 121455360 is about 495.2284222775.

The spelling of 121455360 in words is "one hundred twenty-one million, four hundred fifty-five thousand, three hundred sixty".