131040541 has 2 divisors, whose sum is σ = 131040542. Its totient is φ = 131040540.

The previous prime is 131040527. The next prime is 131040557. The reversal of 131040541 is 145040131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130644900 + 395641 = 11430^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 131040541 - 2¹¹ = 131038493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131080541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65520270 + 65520271.

It is an arithmetic number, because the mean of its divisors is an integer number (65520271).

Almost surely, 2^131040541 is an apocalyptic number.

It is an amenable number.

131040541 is a deficient number, since it is larger than the sum of its proper divisors (1).

131040541 is an equidigital number, since it uses as much as digits as its factorization.

131040541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 131040541 is about 11447.2940470663. The cubic root of 131040541 is about 507.9276936892.

Adding to 131040541 its reverse (145040131), we get a palindrome (276080672).

The spelling of 131040541 in words is "one hundred thirty-one million, forty thousand, five hundred forty-one".