131242041 has 18 divisors (see below), whose sum is σ = 220523082. Its totient is φ = 74995200.

The previous prime is 131242039. The next prime is 131242061. The reversal of 131242041 is 140242131.

It can be written as a sum of positive squares in only one way, i.e., 130988025 + 254016 = 11445^2 + 504^2 .

It is not a de Polignac number, because 131242041 - 2¹ = 131242039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131242061) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 148360 + ... + 149241.

Almost surely, 2^131242041 is an apocalyptic number.

It is an amenable number.

131242041 is a deficient number, since it is larger than the sum of its proper divisors (89281041).

131242041 is a wasteful number, since it uses less digits than its factorization.

131242041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297621 (or 297611 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131242041 is about 11456.0918728858. The cubic root of 131242041 is about 508.1879058206.

Adding to 131242041 its reverse (140242131), we get a palindrome (271484172).

The spelling of 131242041 in words is "one hundred thirty-one million, two hundred forty-two thousand, forty-one".