133212884 has 48 divisors (see below), whose sum is σ = 286376832. Its totient is φ = 52918272.

The previous prime is 133212853. The next prime is 133212929. The reversal of 133212884 is 488212331.

It is a self number, because there is not a number n which added to its sum of digits gives 133212884.

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, 29804 + ... + 33980.

It is an arithmetic number, because the mean of its divisors is an integer number (5966184).

Almost surely, 2^133212884 is an apocalyptic number.

133212884 is a gapful number since it is divisible by the number (14) 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 133212884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143188416).

133212884 is an abundant number, since it is smaller than the sum of its proper divisors (153163948).

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

133212884 is a wasteful number, since it uses less digits than its factorization.

133212884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272 (or 4270 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 133212884 is about 11541.7885962272. The cubic root of 133212884 is about 510.7190728151.

The spelling of 133212884 in words is "one hundred thirty-three million, two hundred twelve thousand, eight hundred eighty-four".