133030 has 16 divisors (see below), whose sum is σ = 244944.
Its totient is φ = 52000.
The previous prime is 133013. The next prime is 133033. The reversal of 133030 is 30331.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 132998 and 133016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (133033) by changing a digit.
133030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405 + ... + 655.
It is an arithmetic number, because the mean of its divisors is an integer number (15309).
2133030 is an apocalyptic number.
133030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
133030 is a deficient number, since it is larger than the sum of its proper divisors (111914).
133030 is a wasteful number, since it uses less digits than its factorization.
133030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 311.
The product of its (nonzero) digits is 27, while the sum is 10.
The square root of 133030 is about 364.7327788944.
The cubic root of 133030 is about 51.0485248779.
Adding to 133030 its reverse (30331), we get a palindrome (163361).
The spelling of 133030 in words is "one hundred thirty-three thousand, thirty".