164851 has 4 divisors (see below), whose sum is σ = 165672. Its totient is φ = 164032.

The previous prime is 164839. The next prime is 164881. The reversal of 164851 is 158461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 158461 = 211 ⋅751.

It is a cyclic number.

It is not a de Polignac number, because 164851 - 2¹³ = 156659 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 6 and base 14.

It is a zygodrome in base 6 and base 14.

It is not an unprimeable number, because it can be changed into a prime (164821) 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, 120 + ... + 586.

It is an arithmetic number, because the mean of its divisors is an integer number (41418).

2¹⁶⁴⁸⁵¹ is an apocalyptic number.

164851 is a deficient number, since it is larger than the sum of its proper divisors (821).

164851 is an equidigital number, since it uses as much as digits as its factorization.

164851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its digits is 960, while the sum is 25.

The square root of 164851 is about 406.0184724862. The cubic root of 164851 is about 54.8315507305.

It can be divided in two parts, 1648 and 51, that multiplied together give a palindrome (84048).

The spelling of 164851 in words is "one hundred sixty-four thousand, eight hundred fifty-one".