131508163 has 2 divisors, whose sum is σ = 131508164. Its totient is φ = 131508162.

The previous prime is 131508133. The next prime is 131508193. The reversal of 131508163 is 361805131.

It is a balanced prime because it is at equal distance from previous prime (131508133) and next prime (131508193).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131508163 is a prime.

It is not a weakly prime, because it can be changed into another prime (131508103) 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, 65754081 + 65754082.

It is an arithmetic number, because the mean of its divisors is an integer number (65754082).

Almost surely, 2^131508163 is an apocalyptic number.

131508163 is a deficient number, since it is larger than the sum of its proper divisors (1).

131508163 is an equidigital number, since it uses as much as digits as its factorization.

131508163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 131508163 is about 11467.7008593702. The cubic root of 131508163 is about 508.5311613661.

The spelling of 131508163 in words is "one hundred thirty-one million, five hundred eight thousand, one hundred sixty-three".