131135212 has 36 divisors (see below), whose sum is σ = 263137896. Its totient is φ = 56958720.

The previous prime is 131135203. The next prime is 131135227. The reversal of 131135212 is 212531131.

It is a self number, because there is not a number n which added to its sum of digits gives 131135212.

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 11 ways as a sum of consecutive naturals, for example, 5787 + ... + 17197.

It is an arithmetic number, because the mean of its divisors is an integer number (7309386).

Almost surely, 2^131135212 is an apocalyptic number.

It is an amenable number.

131135212 is an abundant number, since it is smaller than the sum of its proper divisors (132002684).

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

131135212 is a wasteful number, since it uses less digits than its factorization.

131135212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11443 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 131135212 is about 11451.4283825207. The cubic root of 131135212 is about 508.0499826820.

Adding to 131135212 its reverse (212531131), we get a palindrome (343666343).

The spelling of 131135212 in words is "one hundred thirty-one million, one hundred thirty-five thousand, two hundred twelve".