133912200 has 96 divisors (see below), whose sum is σ = 420285600. Its totient is φ = 35266560.

The previous prime is 133912199. The next prime is 133912217. The reversal of 133912200 is 2219331.

It is a happy number.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48456 + ... + 51144.

It is an arithmetic number, because the mean of its divisors is an integer number (4377975).

Almost surely, 2^133912200 is an apocalyptic number.

133912200 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 133912200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210142800).

133912200 is an abundant number, since it is smaller than the sum of its proper divisors (286373400).

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

133912200 is a wasteful number, since it uses less digits than its factorization.

133912200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 133912200 is about 11572.0438989834. The cubic root of 133912200 is about 511.6112058966.

The spelling of 133912200 in words is "one hundred thirty-three million, nine hundred twelve thousand, two hundred".