133340600 has 72 divisors (see below), whose sum is σ = 319276440. Its totient is φ = 51788160.

The previous prime is 133340573. The next prime is 133340609. The reversal of 133340600 is 6043331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133340609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 273557 + ... + 274043.

It is an arithmetic number, because the mean of its divisors is an integer number (4434395).

Almost surely, 2^133340600 is an apocalyptic number.

133340600 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 133340600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159638220).

133340600 is an abundant number, since it is smaller than the sum of its proper divisors (185935840).

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

133340600 is a wasteful number, since it uses less digits than its factorization.

133340600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133340600 is about 11547.3200354022. The cubic root of 133340600 is about 510.8822356191.

Adding to 133340600 its reverse (6043331), we get a palindrome (139383931).

The spelling of 133340600 in words is "one hundred thirty-three million, three hundred forty thousand, six hundred".