163187 has 4 divisors (see below), whose sum is σ = 166320. Its totient is φ = 160056.

The previous prime is 163181. The next prime is 163193. The reversal of 163187 is 781361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781361 = 7 ⋅111623.

It is an interprime number because it is at equal distance from previous prime (163181) and next prime (163193).

It is a cyclic number.

It is not a de Polignac number, because 163187 - 2⁴ = 163171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163181) 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, 1487 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2¹⁶³¹⁸⁷ is an apocalyptic number.

163187 is a deficient number, since it is larger than the sum of its proper divisors (3133).

163187 is an equidigital number, since it uses as much as digits as its factorization.

163187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its digits is 1008, while the sum is 26.

The square root of 163187 is about 403.9641073165. The cubic root of 163187 is about 54.6464372569.

The spelling of 163187 in words is "one hundred sixty-three thousand, one hundred eighty-seven".