133433020 has 24 divisors (see below), whose sum is σ = 320239584. Its totient is φ = 45748416.

The previous prime is 133433009. The next prime is 133433039. The reversal of 133433020 is 20334331.

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, 476407 + ... + 476686.

It is an arithmetic number, because the mean of its divisors is an integer number (13343316).

Almost surely, 2^133433020 is an apocalyptic number.

133433020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133433020 is an abundant number, since it is smaller than the sum of its proper divisors (186806564).

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

133433020 is a wasteful number, since it uses less digits than its factorization.

133433020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953109 (or 953107 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 133433020 is about 11551.3211365627. The cubic root of 133433020 is about 511.0002412673. Note that the first 3 decimals are identical.

Adding to 133433020 its reverse (20334331), we get a palindrome (153767351).

The spelling of 133433020 in words is "one hundred thirty-three million, four hundred thirty-three thousand, twenty".