164237 has 4 divisors (see below), whose sum is σ = 173916. Its totient is φ = 154560.

The previous prime is 164233. The next prime is 164239. The reversal of 164237 is 732461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44521 + 119716 = 211^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 164237 - 2² = 164233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4814 + ... + 4847.

It is an arithmetic number, because the mean of its divisors is an integer number (43479).

2¹⁶⁴²³⁷ is an apocalyptic number.

164237 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

164237 is a deficient number, since it is larger than the sum of its proper divisors (9679).

164237 is an equidigital number, since it uses as much as digits as its factorization.

164237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9678.

The product of its digits is 1008, while the sum is 23.

The square root of 164237 is about 405.2616438796. The cubic root of 164237 is about 54.7633912880.

Adding to 164237 its reverse (732461), we get a palindrome (896698).

The spelling of 164237 in words is "one hundred sixty-four thousand, two hundred thirty-seven".