133542450 has 72 divisors (see below), whose sum is σ = 377691600. Its totient is φ = 33734880.

The previous prime is 133542403. The next prime is 133542499. The reversal of 133542450 is 54245331.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 741 + ... + 16359.

Almost surely, 2^133542450 is an apocalyptic number.

133542450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133542450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188845800).

133542450 is an abundant number, since it is smaller than the sum of its proper divisors (244149150).

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

133542450 is a wasteful number, since it uses less digits than its factorization.

133542450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15656 (or 15648 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 133542450 is about 11556.0568534427. The cubic root of 133542450 is about 511.1398955469.

Adding to 133542450 its reverse (54245331), we get a palindrome (187787781).

The spelling of 133542450 in words is "one hundred thirty-three million, five hundred forty-two thousand, four hundred fifty".