172213214 has 16 divisors (see below), whose sum is σ = 261975168. Its totient is φ = 84892632.

The previous prime is 172213201. The next prime is 172213231. The reversal of 172213214 is 412312271.

It is a super-3 number, since 3×172213214³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172213214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119969 + ... + 121395.

It is an arithmetic number, because the mean of its divisors is an integer number (16373448).

Almost surely, 2^172213214 is an apocalyptic number.

172213214 is a deficient number, since it is larger than the sum of its proper divisors (89761954).

172213214 is a wasteful number, since it uses less digits than its factorization.

172213214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its digits is 672, while the sum is 23.

The square root of 172213214 is about 13123.0032385883. The cubic root of 172213214 is about 556.3594776060.

Adding to 172213214 its reverse (412312271), we get a palindrome (584525485).

The spelling of 172213214 in words is "one hundred seventy-two million, two hundred thirteen thousand, two hundred fourteen".