131905163 has 8 divisors (see below), whose sum is σ = 149528400. Its totient is φ = 115350048.

The previous prime is 131905153. The next prime is 131905183. The reversal of 131905163 is 361509131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131905163 - 2⁶ = 131905099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131905133) 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 in 7 ways as a sum of consecutive naturals, for example, 266768 + ... + 267261.

It is an arithmetic number, because the mean of its divisors is an integer number (18691050).

Almost surely, 2^131905163 is an apocalyptic number.

131905163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131905163 is a deficient number, since it is larger than the sum of its proper divisors (17623237).

131905163 is a wasteful number, since it uses less digits than its factorization.

131905163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534061.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 131905163 is about 11484.9973008268. The cubic root of 131905163 is about 509.0423693217.

The spelling of 131905163 in words is "one hundred thirty-one million, nine hundred five thousand, one hundred sixty-three".