133413215250 has 128 divisors (see below), whose sum is σ = 380977219584. Its totient is φ = 30461880000.

The previous prime is 133413215237. The next prime is 133413215251. The reversal of 133413215250 is 52512314331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133413215251) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 5084665 + ... + 5110835.

It is an arithmetic number, because the mean of its divisors is an integer number (2976384528).

Almost surely, 2^133413215250 is an apocalyptic number.

133413215250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133413215250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190488609792).

133413215250 is an abundant number, since it is smaller than the sum of its proper divisors (247564004334).

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

133413215250 is a wasteful number, since it uses less digits than its factorization.

133413215250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27169 (or 27159 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 133413215250 its reverse (52512314331), we get a palindrome (185925529581).

The spelling of 133413215250 in words is "one hundred thirty-three billion, four hundred thirteen million, two hundred fifteen thousand, two hundred fifty".