133873880 has 96 divisors (see below), whose sum is σ = 353354400. Its totient is φ = 45513216.

The previous prime is 133873877. The next prime is 133873951. The reversal of 133873880 is 88378331.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 327116 + ... + 327524.

It is an arithmetic number, because the mean of its divisors is an integer number (3680775).

Almost surely, 2^133873880 is an apocalyptic number.

133873880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133873880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176677200).

133873880 is an abundant number, since it is smaller than the sum of its proper divisors (219480520).

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

133873880 is a wasteful number, since it uses less digits than its factorization.

133873880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 133873880 is about 11570.3880660935. The cubic root of 133873880 is about 511.5624007548.

The spelling of 133873880 in words is "one hundred thirty-three million, eight hundred seventy-three thousand, eight hundred eighty".