131266349 has 2 divisors, whose sum is σ = 131266350. Its totient is φ = 131266348.

The previous prime is 131266309. The next prime is 131266363. The reversal of 131266349 is 943662131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77757124 + 53509225 = 8818^2 + 7315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131266349 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 (131266309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65633174 + 65633175.

It is an arithmetic number, because the mean of its divisors is an integer number (65633175).

Almost surely, 2^131266349 is an apocalyptic number.

It is an amenable number.

131266349 is a deficient number, since it is larger than the sum of its proper divisors (1).

131266349 is an equidigital number, since it uses as much as digits as its factorization.

131266349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 131266349 is about 11457.1527440285. The cubic root of 131266349 is about 508.2192785650.

The spelling of 131266349 in words is "one hundred thirty-one million, two hundred sixty-six thousand, three hundred forty-nine".