283133312 has 128 divisors (see below), whose sum is σ = 734400000. Its totient is φ = 105431040.

The previous prime is 283133309. The next prime is 283133341. The reversal of 283133312 is 213331382.

It is a tau number, because it is divible by the number of its divisors (128).

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, 226064 + ... + 227312.

It is an arithmetic number, because the mean of its divisors is an integer number (5737500).

Almost surely, 2^283133312 is an apocalyptic number.

283133312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

283133312 is the 13739-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367200000).

283133312 is an abundant number, since it is smaller than the sum of its proper divisors (451266688).

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

283133312 is a wasteful number, since it uses less digits than its factorization.

283133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1292 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 283133312 is about 16826.5656626657. The cubic root of 283133312 is about 656.6445182506.

Adding to 283133312 its reverse (213331382), we get a palindrome (496464694).

The spelling of 283133312 in words is "two hundred eighty-three million, one hundred thirty-three thousand, three hundred twelve".