131043 has 18 divisors (see below), whose sum is σ = 202692. Its totient is φ = 75240.

The previous prime is 131041. The next prime is 131059. The reversal of 131043 is 340131.

It is a Cunningham number, because it is equal to 362²-1.

It is not a de Polignac number, because 131043 - 2¹ = 131041 is a prime.

It is an Ulam number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (131041) 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, 6888 + ... + 6906.

2¹³¹⁰⁴³ is an apocalyptic number.

131043 is a deficient number, since it is larger than the sum of its proper divisors (71649).

131043 is a wasteful number, since it uses less digits than its factorization.

131043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 131043 is about 361.9986187819. The cubic root of 131043 is about 50.7930870788.

Multiplying 131043 by its sum of digits (12), we get a square (1572516 = 1254²).

Adding to 131043 its reverse (340131), we get a palindrome (471174).

The spelling of 131043 in words is "one hundred thirty-one thousand, forty-three".