131433212 has 24 divisors (see below), whose sum is σ = 234565632. Its totient is φ = 64425200.

The previous prime is 131433209. The next prime is 131433221. The reversal of 131433212 is 212334131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53033 + ... + 55455.

It is an arithmetic number, because the mean of its divisors is an integer number (9773568).

Almost surely, 2^131433212 is an apocalyptic number.

It is an amenable number.

131433212 is a deficient number, since it is larger than the sum of its proper divisors (103132420).

131433212 is a wasteful number, since it uses less digits than its factorization.

131433212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 131433212 is about 11464.4324761412. The cubic root of 131433212 is about 508.4345332393.

Adding to 131433212 its reverse (212334131), we get a palindrome (343767343).

The spelling of 131433212 in words is "one hundred thirty-one million, four hundred thirty-three thousand, two hundred twelve".