131302189 has 2 divisors, whose sum is σ = 131302190. Its totient is φ = 131302188.

The previous prime is 131302183. The next prime is 131302211. The reversal of 131302189 is 981203131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125216100 + 6086089 = 11190^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 131302189 - 2¹⁹ = 130777901 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 (131302183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651094 + 65651095.

It is an arithmetic number, because the mean of its divisors is an integer number (65651095).

Almost surely, 2^131302189 is an apocalyptic number.

It is an amenable number.

131302189 is a deficient number, since it is larger than the sum of its proper divisors (1).

131302189 is an equidigital number, since it uses as much as digits as its factorization.

131302189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 131302189 is about 11458.7167257071. The cubic root of 131302189 is about 508.2655278427.

The spelling of 131302189 in words is "one hundred thirty-one million, three hundred two thousand, one hundred eighty-nine".