131590543 has 4 divisors (see below), whose sum is σ = 150389200. Its totient is φ = 112791888.

The previous prime is 131590519. The next prime is 131590583. The reversal of 131590543 is 345095131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131590543 - 2⁹ = 131590031 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 (131590583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9399318 + ... + 9399331.

It is an arithmetic number, because the mean of its divisors is an integer number (37597300).

Almost surely, 2^131590543 is an apocalyptic number.

131590543 is a deficient number, since it is larger than the sum of its proper divisors (18798657).

131590543 is an equidigital number, since it uses as much as digits as its factorization.

131590543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18798656.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 131590543 is about 11471.2921242552. The cubic root of 131590543 is about 508.6373247444.

The spelling of 131590543 in words is "one hundred thirty-one million, five hundred ninety thousand, five hundred forty-three".