133230500 has 96 divisors (see below), whose sum is σ = 317990400. Its totient is φ = 48470400.

The previous prime is 133230491. The next prime is 133230511. The reversal of 133230500 is 5032331.

It is a super-2 number, since 2×133230500² = 35500732260500000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 669401 + ... + 669599.

It is an arithmetic number, because the mean of its divisors is an integer number (3312400).

Almost surely, 2^133230500 is an apocalyptic number.

133230500 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 133230500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158995200).

133230500 is an abundant number, since it is smaller than the sum of its proper divisors (184759900).

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

133230500 is a wasteful number, since it uses less digits than its factorization.

133230500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 133230500 is about 11542.5517109520. The cubic root of 133230500 is about 510.7415842279.

Adding to 133230500 its reverse (5032331), we get a palindrome (138262831).

The spelling of 133230500 in words is "one hundred thirty-three million, two hundred thirty thousand, five hundred".