131333647 has 2 divisors, whose sum is σ = 131333648. Its totient is φ = 131333646.

The previous prime is 131333627. The next prime is 131333669. The reversal of 131333647 is 746333131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131333647 - 2¹⁹ = 130809359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131333627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666823 + 65666824.

It is an arithmetic number, because the mean of its divisors is an integer number (65666824).

Almost surely, 2^131333647 is an apocalyptic number.

131333647 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333647 is an equidigital number, since it uses as much as digits as its factorization.

131333647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 31.

The square root of 131333647 is about 11460.0893102977. The cubic root of 131333647 is about 508.3061154886.

Adding to 131333647 its reverse (746333131), we get a palindrome (877666778).

The spelling of 131333647 in words is "one hundred thirty-one million, three hundred thirty-three thousand, six hundred forty-seven".