131522200 has 96 divisors (see below), whose sum is σ = 327836160. Its totient is φ = 48896000.

The previous prime is 131522191. The next prime is 131522213. The reversal of 131522200 is 2225131.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 343209 + ... + 343591.

It is an arithmetic number, because the mean of its divisors is an integer number (3414960).

Almost surely, 2^131522200 is an apocalyptic number.

131522200 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 131522200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163918080).

131522200 is an abundant number, since it is smaller than the sum of its proper divisors (196313960).

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

131522200 is a wasteful number, since it uses less digits than its factorization.

131522200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 131522200 is about 11468.3128663287. The cubic root of 131522200 is about 508.5492540274.

Adding to 131522200 its reverse (2225131), we get a palindrome (133747331).

The spelling of 131522200 in words is "one hundred thirty-one million, five hundred twenty-two thousand, two hundred".