133033020 has 24 divisors (see below), whose sum is σ = 372492624. Its totient is φ = 35475456.

The previous prime is 133033001. The next prime is 133033031. The reversal of 133033020 is 20330331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108549 + ... + 1108668.

It is an arithmetic number, because the mean of its divisors is an integer number (15520526).

Almost surely, 2^133033020 is an apocalyptic number.

133033020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133033020 is an abundant number, since it is smaller than the sum of its proper divisors (239459604).

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

133033020 is a wasteful number, since it uses less digits than its factorization.

133033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217229 (or 2217227 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 133033020 is about 11533.9941043855. The cubic root of 133033020 is about 510.4891117015.

Adding to 133033020 its reverse (20330331), we get a palindrome (153363351).

The spelling of 133033020 in words is "one hundred thirty-three million, thirty-three thousand, twenty".