131767543 has 2 divisors, whose sum is σ = 131767544. Its totient is φ = 131767542.

The previous prime is 131767541. The next prime is 131767547. The reversal of 131767543 is 345767131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131767543 - 2¹ = 131767541 is a prime.

Together with 131767541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131767541) 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 as a sum of consecutive naturals, namely, 65883771 + 65883772.

It is an arithmetic number, because the mean of its divisors is an integer number (65883772).

Almost surely, 2^131767543 is an apocalyptic number.

131767543 is a deficient number, since it is larger than the sum of its proper divisors (1).

131767543 is an equidigital number, since it uses as much as digits as its factorization.

131767543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 131767543 is about 11479.0044428949. The cubic root of 131767543 is about 508.8652754497.

The spelling of 131767543 in words is "one hundred thirty-one million, seven hundred sixty-seven thousand, five hundred forty-three".