133816980 has 48 divisors (see below), whose sum is σ = 408752064. Its totient is φ = 32440320.

The previous prime is 133816931. The next prime is 133816993. The reversal of 133816980 is 89618331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100717 + ... + 102036.

It is an arithmetic number, because the mean of its divisors is an integer number (8515668).

Almost surely, 2^133816980 is an apocalyptic number.

133816980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133816980 is an abundant number, since it is smaller than the sum of its proper divisors (274935084).

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

133816980 is a wasteful number, since it uses less digits than its factorization.

133816980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202776 (or 202774 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 133816980 is about 11567.9289416905. The cubic root of 133816980 is about 511.4899145574.

The spelling of 133816980 in words is "one hundred thirty-three million, eight hundred sixteen thousand, nine hundred eighty".