131534705287 has 2 divisors, whose sum is σ = 131534705288. Its totient is φ = 131534705286.

The previous prime is 131534705257. The next prime is 131534705303. The reversal of 131534705287 is 782507435131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131534705287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131534705207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65767352643 + 65767352644.

It is an arithmetic number, because the mean of its divisors is an integer number (65767352644).

Almost surely, 2^131534705287 is an apocalyptic number.

131534705287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131534705287 is an equidigital number, since it uses as much as digits as its factorization.

131534705287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 131534705287 in words is "one hundred thirty-one billion, five hundred thirty-four million, seven hundred five thousand, two hundred eighty-seven".