131355543 has 24 divisors (see below), whose sum is σ = 195186544. Its totient is φ = 78503040.

The previous prime is 131355541. The next prime is 131355547. The reversal of 131355543 is 345553131.

It is not a de Polignac number, because 131355543 - 2¹ = 131355541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131355543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131355541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24021 + ... + 28977.

Almost surely, 2^131355543 is an apocalyptic number.

131355543 is a deficient number, since it is larger than the sum of its proper divisors (63831001).

131355543 is a wasteful number, since it uses less digits than its factorization.

131355543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055 (or 5044 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 131355543 is about 11461.0445859005. The cubic root of 131355543 is about 508.3343622542.

The spelling of 131355543 in words is "one hundred thirty-one million, three hundred fifty-five thousand, five hundred forty-three".