7212168 has 24 divisors (see below), whose sum is σ = 19533150. Its totient is φ = 2404032.

The previous prime is 7212157. The next prime is 7212169. The reversal of 7212168 is 8612127.

It can be written as a sum of positive squares in only one way, i.e., 7193124 + 19044 = 2682^2 + 138^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (7212169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50013 + ... + 50156.

Almost surely, 2^7212168 is an apocalyptic number.

It is an amenable number.

7212168 is an abundant number, since it is smaller than the sum of its proper divisors (12320982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7212168 is a wasteful number, since it uses less digits than its factorization.

7212168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100181 (or 100174 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 7212168 is about 2685.5479887725. The cubic root of 7212168 is about 193.2065941707.

It can be divided in two parts, 72 and 12168, that multiplied together give a square (876096 = 936²).

The spelling of 7212168 in words is "seven million, two hundred twelve thousand, one hundred sixty-eight".