164287 has 4 divisors (see below), whose sum is σ = 168336. Its totient is φ = 160240.

The previous prime is 164279. The next prime is 164291. The reversal of 164287 is 782461.

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 164287 - 2³ = 164279 is a prime.

It is a Duffinian number.

164287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164267) 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, 1963 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (42084).

2¹⁶⁴²⁸⁷ is an apocalyptic number.

164287 is a deficient number, since it is larger than the sum of its proper divisors (4049).

164287 is an equidigital number, since it uses as much as digits as its factorization.

164287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048.

The product of its digits is 2688, while the sum is 28.

The square root of 164287 is about 405.3233277274. The cubic root of 164287 is about 54.7689480784.

The spelling of 164287 in words is "one hundred sixty-four thousand, two hundred eighty-seven".