133160000 has 70 divisors (see below), whose sum is σ = 330292710. Its totient is φ = 53248000.

The previous prime is 133159993. The next prime is 133160017. The reversal of 133160000 is 61331.

It can be written as a sum of positive squares in 5 ways, for example, as 59474944 + 73685056 = 7712^2 + 8584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38336 + ... + 41664.

Almost surely, 2^133160000 is an apocalyptic number.

133160000 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 133160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165146355).

133160000 is an abundant number, since it is smaller than the sum of its proper divisors (197132710).

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

133160000 is an frugal number, since it uses more digits than its factorization.

133160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 133160000 is about 11539.4973894013. The cubic root of 133160000 is about 510.6514806486.

The spelling of 133160000 in words is "one hundred thirty-three million, one hundred sixty thousand".