131816105 has 16 divisors (see below), whose sum is σ = 165939840. Its totient is φ = 100328448.

The previous prime is 131816099. The next prime is 131816117. The reversal of 131816105 is 501618131.

It is a cyclic number.

It is not a de Polignac number, because 131816105 - 2¹⁴ = 131799721 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 19226 + ... + 25164.

It is an arithmetic number, because the mean of its divisors is an integer number (10371240).

Almost surely, 2^131816105 is an apocalyptic number.

It is an amenable number.

131816105 is a deficient number, since it is larger than the sum of its proper divisors (34123735).

131816105 is a wasteful number, since it uses less digits than its factorization.

131816105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 131816105 is about 11481.1195011636. The cubic root of 131816105 is about 508.9277806762.

The spelling of 131816105 in words is "one hundred thirty-one million, eight hundred sixteen thousand, one hundred five".