133043568 has 160 divisors (see below), whose sum is σ = 414830592. Its totient is φ = 35942400.

The previous prime is 133043557. The next prime is 133043579. The reversal of 133043568 is 865340331.

It is an interprime number because it is at equal distance from previous prime (133043557) and next prime (133043579).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 551928 + ... + 552168.

Almost surely, 2^133043568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133043568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207415296).

133043568 is an abundant number, since it is smaller than the sum of its proper divisors (281787024).

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

133043568 is a wasteful number, since it uses less digits than its factorization.

133043568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 133043568 is about 11534.4513523618. The cubic root of 133043568 is about 510.5026033315.

Adding to 133043568 its reverse (865340331), we get a palindrome (998383899).

The spelling of 133043568 in words is "one hundred thirty-three million, forty-three thousand, five hundred sixty-eight".