133532500 has 60 divisors (see below), whose sum is σ = 301603456. Its totient is φ = 51660000.

The previous prime is 133532491. The next prime is 133532527. The reversal of 133532500 is 5235331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76639 + ... + 78361.

Almost surely, 2^133532500 is an apocalyptic number.

133532500 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 133532500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150801728).

133532500 is an abundant number, since it is smaller than the sum of its proper divisors (168070956).

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

133532500 is a wasteful number, since it uses less digits than its factorization.

133532500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 133532500 is about 11555.6263352533. The cubic root of 133532500 is about 511.1272005367.

Adding to 133532500 its reverse (5235331), we get a palindrome (138767831).

The spelling of 133532500 in words is "one hundred thirty-three million, five hundred thirty-two thousand, five hundred".