131143441 has 16 divisors (see below), whose sum is σ = 154522368. Its totient is φ = 109728000.

The previous prime is 131143433. The next prime is 131143451. The reversal of 131143441 is 144341131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131143441 - 2³ = 131143433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131143451) 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 15 ways as a sum of consecutive naturals, for example, 56200 + ... + 58486.

It is an arithmetic number, because the mean of its divisors is an integer number (9657648).

Almost surely, 2^131143441 is an apocalyptic number.

131143441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131143441 is a deficient number, since it is larger than the sum of its proper divisors (23378927).

131143441 is a wasteful number, since it uses less digits than its factorization.

131143441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712.

The product of its digits is 576, while the sum is 22.

The square root of 131143441 is about 11451.7876770398. The cubic root of 131143441 is about 508.0606095146.

Adding to 131143441 its reverse (144341131), we get a palindrome (275484572).

The spelling of 131143441 in words is "one hundred thirty-one million, one hundred forty-three thousand, four hundred forty-one".