133325400 has 96 divisors (see below), whose sum is σ = 445127760. Its totient is φ = 32816640.

The previous prime is 133325371. The next prime is 133325419. The reversal of 133325400 is 4523331.

133325400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 747 + ... + 16346.

Almost surely, 2^133325400 is an apocalyptic number.

133325400 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 133325400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222563880).

133325400 is an abundant number, since it is smaller than the sum of its proper divisors (311802360).

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

133325400 is a wasteful number, since it uses less digits than its factorization.

133325400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17125 (or 17116 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 133325400 is about 11546.6618552723. The cubic root of 133325400 is about 510.8628224145.

Adding to 133325400 its reverse (4523331), we get a palindrome (137848731).

The spelling of 133325400 in words is "one hundred thirty-three million, three hundred twenty-five thousand, four hundred".