131011541 has 2 divisors, whose sum is σ = 131011542. Its totient is φ = 131011540.

The previous prime is 131011499. The next prime is 131011547. The reversal of 131011541 is 145110131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131010916 + 625 = 11446^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 131011541 - 2²² = 126817237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131011547) 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, 65505770 + 65505771.

It is an arithmetic number, because the mean of its divisors is an integer number (65505771).

Almost surely, 2^131011541 is an apocalyptic number.

It is an amenable number.

131011541 is a deficient number, since it is larger than the sum of its proper divisors (1).

131011541 is an equidigital number, since it uses as much as digits as its factorization.

131011541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 131011541 is about 11446.0273020817. The cubic root of 131011541 is about 507.8902218509.

Adding to 131011541 its reverse (145110131), we get a palindrome (276121672).

The spelling of 131011541 in words is "one hundred thirty-one million, eleven thousand, five hundred forty-one".