131584163 has 4 divisors (see below), whose sum is σ = 131789448. Its totient is φ = 131378880.

The previous prime is 131584157. The next prime is 131584169. The reversal of 131584163 is 361485131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (131584157) and next prime (131584169).

It is a cyclic number.

It is not a de Polignac number, because 131584163 - 2⁴ = 131584147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131584169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101678 + ... + 102963.

It is an arithmetic number, because the mean of its divisors is an integer number (32947362).

Almost surely, 2^131584163 is an apocalyptic number.

131584163 is a deficient number, since it is larger than the sum of its proper divisors (205285).

131584163 is an equidigital number, since it uses as much as digits as its factorization.

131584163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205284.

The product of its digits is 8640, while the sum is 32.

The square root of 131584163 is about 11471.0140353850. The cubic root of 131584163 is about 508.6291044004.

The spelling of 131584163 in words is "one hundred thirty-one million, five hundred eighty-four thousand, one hundred sixty-three".