131205232 has 10 divisors (see below), whose sum is σ = 254210168. Its totient is φ = 65602608.

The previous prime is 131205209. The next prime is 131205233. The reversal of 131205232 is 232502131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131205233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4100148 + ... + 4100179.

Almost surely, 2^131205232 is an apocalyptic number.

It is an amenable number.

131205232 is a deficient number, since it is larger than the sum of its proper divisors (123004936).

131205232 is an equidigital number, since it uses as much as digits as its factorization.

131205232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200335 (or 8200329 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131205232 is about 11454.4852350509. The cubic root of 131205232 is about 508.1403914785.

Adding to 131205232 its reverse (232502131), we get a palindrome (363707363).

The spelling of 131205232 in words is "one hundred thirty-one million, two hundred five thousand, two hundred thirty-two".