131500189 has 2 divisors, whose sum is σ = 131500190. Its totient is φ = 131500188.

The previous prime is 131500157. The next prime is 131500199. The reversal of 131500189 is 981005131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131492089 + 8100 = 11467^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 131500189 - 2⁵ = 131500157 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 (131500139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65750094 + 65750095.

It is an arithmetic number, because the mean of its divisors is an integer number (65750095).

Almost surely, 2^131500189 is an apocalyptic number.

It is an amenable number.

131500189 is a deficient number, since it is larger than the sum of its proper divisors (1).

131500189 is an equidigital number, since it uses as much as digits as its factorization.

131500189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 131500189 is about 11467.3531819684. The cubic root of 131500189 is about 508.5208828928.

The spelling of 131500189 in words is "one hundred thirty-one million, five hundred thousand, one hundred eighty-nine".