131322200 has 96 divisors (see below), whose sum is σ = 321408000. Its totient is φ = 49833600.

The previous prime is 131322199. The next prime is 131322223. The reversal of 131322200 is 2223131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365621 + ... + 365979.

It is an arithmetic number, because the mean of its divisors is an integer number (3348000).

Almost surely, 2^131322200 is an apocalyptic number.

131322200 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 131322200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160704000).

131322200 is an abundant number, since it is smaller than the sum of its proper divisors (190085800).

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

131322200 is a wasteful number, since it uses less digits than its factorization.

131322200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 131322200 is about 11459.5898704971. The cubic root of 131322200 is about 508.2913471249.

Adding to 131322200 its reverse (2223131), we get a palindrome (133545331).

The spelling of 131322200 in words is "one hundred thirty-one million, three hundred twenty-two thousand, two hundred".