133394500 has 48 divisors (see below), whose sum is σ = 292481280. Its totient is φ = 53148000.

The previous prime is 133394491. The next prime is 133394501. The reversal of 133394500 is 5493331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133394501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215191 + ... + 215809.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2^133394500 is an apocalyptic number.

133394500 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 133394500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146240640).

133394500 is an abundant number, since it is smaller than the sum of its proper divisors (159086780).

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

133394500 is a wasteful number, since it uses less digits than its factorization.

133394500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 133394500 is about 11549.6536744614. The cubic root of 133394500 is about 510.9510639754.

The spelling of 133394500 in words is "one hundred thirty-three million, three hundred ninety-four thousand, five hundred".