133029990 has 48 divisors (see below), whose sum is σ = 357042816. Its totient is φ = 34329600.

The previous prime is 133029979. The next prime is 133030019. The reversal of 133029990 is 99920331.

133029990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21051 + ... + 26630.

It is an arithmetic number, because the mean of its divisors is an integer number (7438392).

Almost surely, 2^133029990 is an apocalyptic number.

133029990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133029990 is an abundant number, since it is smaller than the sum of its proper divisors (224012826).

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

133029990 is a wasteful number, since it uses less digits than its factorization.

133029990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47725 (or 47722 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 133029990 is about 11533.8627527815. The cubic root of 133029990 is about 510.4852359877.

The spelling of 133029990 in words is "one hundred thirty-three million, twenty-nine thousand, nine hundred ninety".