68133500 has 48 divisors (see below), whose sum is σ = 152312160. Its totient is φ = 26611200.

The previous prime is 68133497. The next prime is 68133529. The reversal of 68133500 is 533186.

It is a self number, because there is not a number n which added to its sum of digits gives 68133500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19916 + ... + 23084.

It is an arithmetic number, because the mean of its divisors is an integer number (3173170).

Almost surely, 2^68133500 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 68133500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76156080).

68133500 is an abundant number, since it is smaller than the sum of its proper divisors (84178660).

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

68133500 is a wasteful number, since it uses less digits than its factorization.

68133500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231 (or 3219 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 68133500 is about 8254.3019087019. The cubic root of 68133500 is about 408.4324438951.

Adding to 68133500 its reverse (533186), we get a palindrome (68666686).

The spelling of 68133500 in words is "sixty-eight million, one hundred thirty-three thousand, five hundred".