131243041 has 4 divisors (see below), whose sum is σ = 131274432. Its totient is φ = 131211652.

The previous prime is 131243027. The next prime is 131243069. The reversal of 131243041 is 140342131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131243041 - 2⁷ = 131242913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131243011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8245 + ... + 18178.

It is an arithmetic number, because the mean of its divisors is an integer number (32818608).

Almost surely, 2^131243041 is an apocalyptic number.

It is an amenable number.

131243041 is a deficient number, since it is larger than the sum of its proper divisors (31391).

131243041 is an equidigital number, since it uses as much as digits as its factorization.

131243041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31390.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131243041 is about 11456.1355177040. The cubic root of 131243041 is about 508.1891965315.

Adding to 131243041 its reverse (140342131), we get a palindrome (271585172).

The spelling of 131243041 in words is "one hundred thirty-one million, two hundred forty-three thousand, forty-one".