131143042 has 16 divisors (see below), whose sum is σ = 198903672. Its totient is φ = 64846080.

The previous prime is 131143039. The next prime is 131143043. The reversal of 131143042 is 240341131.

It can be written as a sum of positive squares in 4 ways, for example, as 111703761 + 19439281 = 10569^2 + 4409^2 .

It is not an unprimeable number, because it can be changed into a prime (131143043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74808 + ... + 76540.

Almost surely, 2^131143042 is an apocalyptic number.

131143042 is a deficient number, since it is larger than the sum of its proper divisors (67760630).

131143042 is a wasteful number, since it uses less digits than its factorization.

131143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133.

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

The square root of 131143042 is about 11451.7702561656. The cubic root of 131143042 is about 508.0600942610.

Adding to 131143042 its reverse (240341131), we get a palindrome (371484173).

The spelling of 131143042 in words is "one hundred thirty-one million, one hundred forty-three thousand, forty-two".