133102320 has 160 divisors (see below), whose sum is σ = 456762432. Its totient is φ = 31850496.

The previous prime is 133102297. The next prime is 133102327. The reversal of 133102320 is 23201331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 133102320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133102327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114864 + ... + 116016.

Almost surely, 2^133102320 is an apocalyptic number.

133102320 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 133102320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228381216).

133102320 is an abundant number, since it is smaller than the sum of its proper divisors (323660112).

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

133102320 is a wasteful number, since it uses less digits than its factorization.

133102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133102320 is about 11536.9978763975. The cubic root of 133102320 is about 510.5777382053.

Adding to 133102320 its reverse (23201331), we get a palindrome (156303651).

The spelling of 133102320 in words is "one hundred thirty-three million, one hundred two thousand, three hundred twenty".