210172 has 6 divisors (see below), whose sum is σ = 367808. Its totient is φ = 105084.

The previous prime is 210169. The next prime is 210173. The reversal of 210172 is 271012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26268 + ... + 26275.

2²¹⁰¹⁷² is an apocalyptic number.

It is an amenable number.

210172 is a deficient number, since it is larger than the sum of its proper divisors (157636).

210172 is a wasteful number, since it uses less digits than its factorization.

210172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52547 (or 52545 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 210172 is about 458.4451984698. The cubic root of 210172 is about 59.4554429496.

Adding to 210172 its reverse (271012), we get a palindrome (481184).

The spelling of 210172 in words is "two hundred ten thousand, one hundred seventy-two", and thus it is an iban number.