131105159 has 2 divisors, whose sum is σ = 131105160. Its totient is φ = 131105158.

The previous prime is 131105147. The next prime is 131105179. The reversal of 131105159 is 951501131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131105159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131105119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65552579 + 65552580.

It is an arithmetic number, because the mean of its divisors is an integer number (65552580).

Almost surely, 2^131105159 is an apocalyptic number.

131105159 is a deficient number, since it is larger than the sum of its proper divisors (1).

131105159 is an equidigital number, since it uses as much as digits as its factorization.

131105159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 26.

The square root of 131105159 is about 11450.1161129484. The cubic root of 131105159 is about 508.0111688184.

The spelling of 131105159 in words is "one hundred thirty-one million, one hundred five thousand, one hundred fifty-nine".