163116131 has 4 divisors (see below), whose sum is σ = 163315152. Its totient is φ = 162917112.

The previous prime is 163116127. The next prime is 163116143. The reversal of 163116131 is 131611361.

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

It is a cyclic number.

It is not a de Polignac number, because 163116131 - 2² = 163116127 is a prime.

It is a super-2 number, since 2×163116131² = 53213744384818322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163116097 and 163116106.

It is not an unprimeable number, because it can be changed into a prime (163116431) 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, 98276 + ... + 99921.

It is an arithmetic number, because the mean of its divisors is an integer number (40828788).

Almost surely, 2^163116131 is an apocalyptic number.

163116131 is a deficient number, since it is larger than the sum of its proper divisors (199021).

163116131 is an equidigital number, since it uses as much as digits as its factorization.

163116131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199020.

The product of its digits is 324, while the sum is 23.

The square root of 163116131 is about 12771.6925659836. The cubic root of 163116131 is about 546.3852547653.

Adding to 163116131 its reverse (131611361), we get a palindrome (294727492).

The spelling of 163116131 in words is "one hundred sixty-three million, one hundred sixteen thousand, one hundred thirty-one".