121570160 has 80 divisors (see below), whose sum is σ = 295103136. Its totient is φ = 46531584.

The previous prime is 121570109. The next prime is 121570187. The reversal of 121570160 is 61075121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198014 + ... + 198626.

Almost surely, 2^121570160 is an apocalyptic number.

121570160 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 121570160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147551568).

121570160 is an abundant number, since it is smaller than the sum of its proper divisors (173532976).

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

121570160 is a wasteful number, since it uses less digits than its factorization.

121570160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 121570160 is about 11025.8859054500. The cubic root of 121570160 is about 495.3844036465.

The spelling of 121570160 in words is "one hundred twenty-one million, five hundred seventy thousand, one hundred sixty".