210164 has 6 divisors (see below), whose sum is σ = 367794. Its totient is φ = 105080.

The previous prime is 210157. The next prime is 210169. The reversal of 210164 is 461012.

210164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 209764 + 400 = 458^2 + 20^2 .

It is an Ulam number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26267 + ... + 26274.

It is an arithmetic number, because the mean of its divisors is an integer number (61299).

2²¹⁰¹⁶⁴ is an apocalyptic number.

It is an amenable number.

210164 is a deficient number, since it is larger than the sum of its proper divisors (157630).

210164 is a wasteful number, since it uses less digits than its factorization.

210164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52545 (or 52543 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 210164 is about 458.4364732436. The cubic root of 210164 is about 59.4546885681.

Adding to 210164 its reverse (461012), we get a palindrome (671176).

The spelling of 210164 in words is "two hundred ten thousand, one hundred sixty-four".