131200241 has 2 divisors, whose sum is σ = 131200242. Its totient is φ = 131200240.

The previous prime is 131200229. The next prime is 131200249. The reversal of 131200241 is 142002131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110986225 + 20214016 = 10535^2 + 4496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131200241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131200249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600120 + 65600121.

It is an arithmetic number, because the mean of its divisors is an integer number (65600121).

Almost surely, 2^131200241 is an apocalyptic number.

It is an amenable number.

131200241 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200241 is an equidigital number, since it uses as much as digits as its factorization.

131200241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131200241 is about 11454.2673707226. The cubic root of 131200241 is about 508.1339482374.

Adding to 131200241 its reverse (142002131), we get a palindrome (273202372).

The spelling of 131200241 in words is "one hundred thirty-one million, two hundred thousand, two hundred forty-one".