131024543 has 4 divisors (see below), whose sum is σ = 141103368. Its totient is φ = 120945720.

The previous prime is 131024519. The next prime is 131024557. The reversal of 131024543 is 345420131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131024543 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 (131024563) 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, 5039393 + ... + 5039418.

It is an arithmetic number, because the mean of its divisors is an integer number (35275842).

Almost surely, 2^131024543 is an apocalyptic number.

131024543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131024543 is a deficient number, since it is larger than the sum of its proper divisors (10078825).

131024543 is a wasteful number, since it uses less digits than its factorization.

131024543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10078824.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 131024543 is about 11446.5952579796. The cubic root of 131024543 is about 507.9070228396.

Adding to 131024543 its reverse (345420131), we get a palindrome (476444674).

The spelling of 131024543 in words is "one hundred thirty-one million, twenty-four thousand, five hundred forty-three".