172443214 has 8 divisors (see below), whose sum is σ = 259102800. Its totient is φ = 86075616.

The previous prime is 172443211. The next prime is 172443239. The reversal of 172443214 is 412344271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172443211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71514 + ... + 73885.

It is an arithmetic number, because the mean of its divisors is an integer number (32387850).

Almost surely, 2^172443214 is an apocalyptic number.

172443214 is a deficient number, since it is larger than the sum of its proper divisors (86659586).

172443214 is a wasteful number, since it uses less digits than its factorization.

172443214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145994.

The product of its digits is 5376, while the sum is 28.

The square root of 172443214 is about 13131.7635525469. The cubic root of 172443214 is about 556.6070500815.

Adding to 172443214 its reverse (412344271), we get a palindrome (584787485).

The spelling of 172443214 in words is "one hundred seventy-two million, four hundred forty-three thousand, two hundred fourteen".