131876543 has 4 divisors (see below), whose sum is σ = 136424040. Its totient is φ = 127329048.

The previous prime is 131876539. The next prime is 131876567. The reversal of 131876543 is 345678131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345678131 = 109 ⋅3171359.

It is a cyclic number.

It is not a de Polignac number, because 131876543 - 2² = 131876539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131876497 and 131876506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131876513) 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, 2273705 + ... + 2273762.

It is an arithmetic number, because the mean of its divisors is an integer number (34106010).

Almost surely, 2^131876543 is an apocalyptic number.

131876543 is a deficient number, since it is larger than the sum of its proper divisors (4547497).

131876543 is an equidigital number, since it uses as much as digits as its factorization.

131876543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547496.

The product of its digits is 60480, while the sum is 38.

The square root of 131876543 is about 11483.7512599324. The cubic root of 131876543 is about 509.0055503272.

The spelling of 131876543 in words is "one hundred thirty-one million, eight hundred seventy-six thousand, five hundred forty-three".