131126143 has 4 divisors (see below), whose sum is σ = 133348680. Its totient is φ = 128903608.

The previous prime is 131126141. The next prime is 131126173. The reversal of 131126143 is 341621131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341621131 = 29 ⋅11780039.

It is a cyclic number.

It is not a de Polignac number, because 131126143 - 2¹ = 131126141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131126141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111180 + ... + 1111297.

It is an arithmetic number, because the mean of its divisors is an integer number (33337170).

Almost surely, 2^131126143 is an apocalyptic number.

131126143 is a deficient number, since it is larger than the sum of its proper divisors (2222537).

131126143 is an equidigital number, since it uses as much as digits as its factorization.

131126143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222536.

The product of its digits is 432, while the sum is 22.

The square root of 131126143 is about 11451.0323988713. The cubic root of 131126143 is about 508.0382705683.

Adding to 131126143 its reverse (341621131), we get a palindrome (472747274).

The spelling of 131126143 in words is "one hundred thirty-one million, one hundred twenty-six thousand, one hundred forty-three".