131332212 has 96 divisors (see below), whose sum is σ = 373847040. Its totient is φ = 39540960.

The previous prime is 131332211. The next prime is 131332273. The reversal of 131332212 is 212233131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131332211) 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 31 ways as a sum of consecutive naturals, for example, 269433 + ... + 269919.

It is an arithmetic number, because the mean of its divisors is an integer number (3894240).

Almost surely, 2^131332212 is an apocalyptic number.

131332212 is a gapful number since it is divisible by the number (12) 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 131332212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186923520).

131332212 is an abundant number, since it is smaller than the sum of its proper divisors (242514828).

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

131332212 is a wasteful number, since it uses less digits than its factorization.

131332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 730 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 131332212 is about 11460.0267015396. The cubic root of 131332212 is about 508.3042641683.

Adding to 131332212 its reverse (212233131), we get a palindrome (343565343).

The spelling of 131332212 in words is "one hundred thirty-one million, three hundred thirty-two thousand, two hundred twelve".