131131163 has 8 divisors (see below), whose sum is σ = 131981616. Its totient is φ = 130284000.

The previous prime is 131131129. The next prime is 131131177. The reversal of 131131163 is 361131131.

It is a happy number.

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 131131163 - 2²⁰ = 130082587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131131193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186713 + ... + 187413.

It is an arithmetic number, because the mean of its divisors is an integer number (16497702).

Almost surely, 2^131131163 is an apocalyptic number.

131131163 is a deficient number, since it is larger than the sum of its proper divisors (850453).

131131163 is an equidigital number, since it uses as much as digits as its factorization.

131131163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its digits is 162, while the sum is 20.

The square root of 131131163 is about 11451.2515909834. The cubic root of 131131163 is about 508.0447536884.

Adding to 131131163 its reverse (361131131), we get a palindrome (492262294).

The spelling of 131131163 in words is "one hundred thirty-one million, one hundred thirty-one thousand, one hundred sixty-three".