172222239 has 32 divisors (see below), whose sum is σ = 269821440. Its totient is φ = 95680512.

The previous prime is 172222151. The next prime is 172222243. The reversal of 172222239 is 932222271.

It is not a de Polignac number, because 172222239 - 2⁸ = 172221983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172222339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119467 + ... + 120899.

It is an arithmetic number, because the mean of its divisors is an integer number (8431920).

Almost surely, 2^172222239 is an apocalyptic number.

172222239 is a deficient number, since it is larger than the sum of its proper divisors (97599201).

172222239 is a wasteful number, since it uses less digits than its factorization.

172222239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its digits is 6048, while the sum is 30.

The square root of 172222239 is about 13123.3470959203. The cubic root of 172222239 is about 556.3691962884.

The spelling of 172222239 in words is "one hundred seventy-two million, two hundred twenty-two thousand, two hundred thirty-nine".