131516275543 has 2 divisors, whose sum is σ = 131516275544. Its totient is φ = 131516275542.

The previous prime is 131516275519. The next prime is 131516275549. The reversal of 131516275543 is 345572615131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131516275543 - 2⁹ = 131516275031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131516275543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131516275549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65758137771 + 65758137772.

It is an arithmetic number, because the mean of its divisors is an integer number (65758137772).

Almost surely, 2^131516275543 is an apocalyptic number.

131516275543 is a deficient number, since it is larger than the sum of its proper divisors (1).

131516275543 is an equidigital number, since it uses as much as digits as its factorization.

131516275543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 43.

The spelling of 131516275543 in words is "one hundred thirty-one billion, five hundred sixteen million, two hundred seventy-five thousand, five hundred forty-three".