131608159 has 2 divisors, whose sum is σ = 131608160. Its totient is φ = 131608158.

The previous prime is 131608121. The next prime is 131608199. The reversal of 131608159 is 951806131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131608159 - 2⁷ = 131608031 is a prime.

It is equal to p_7464238 and since 131608159 and 7464238 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131608109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65804079 + 65804080.

It is an arithmetic number, because the mean of its divisors is an integer number (65804080).

Almost surely, 2^131608159 is an apocalyptic number.

131608159 is a deficient number, since it is larger than the sum of its proper divisors (1).

131608159 is an equidigital number, since it uses as much as digits as its factorization.

131608159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 131608159 is about 11472.0599283651. The cubic root of 131608159 is about 508.6600207910.

The spelling of 131608159 in words is "one hundred thirty-one million, six hundred eight thousand, one hundred fifty-nine".