121500160 has 80 divisors (see below), whose sum is σ = 300909312. Its totient is φ = 47001600.

The previous prime is 121500157. The next prime is 121500167. The reversal of 121500160 is 61005121.

It is a happy number.

121500160 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (121500167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78595 + ... + 80125.

Almost surely, 2^121500160 is an apocalyptic number.

121500160 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 121500160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150454656).

121500160 is an abundant number, since it is smaller than the sum of its proper divisors (179409152).

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

121500160 is an equidigital number, since it uses as much as digits as its factorization.

121500160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 121500160 is about 11022.7111002693. The cubic root of 121500160 is about 495.2893047449.

Adding to 121500160 its reverse (61005121), we get a palindrome (182505281).

The spelling of 121500160 in words is "one hundred twenty-one million, five hundred thousand, one hundred sixty".