172339201 has 2 divisors, whose sum is σ = 172339202. Its totient is φ = 172339200.

The previous prime is 172339171. The next prime is 172339301. The reversal of 172339201 is 102933271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131698576 + 40640625 = 11476^2 + 6375^2 .

It is a cyclic number.

It is not a de Polignac number, because 172339201 - 2¹⁹ = 171814913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172339201.

It is not a weakly prime, because it can be changed into another prime (172339301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86169600 + 86169601.

It is an arithmetic number, because the mean of its divisors is an integer number (86169601).

Almost surely, 2^172339201 is an apocalyptic number.

It is an amenable number.

172339201 is a deficient number, since it is larger than the sum of its proper divisors (1).

172339201 is an equidigital number, since it uses as much as digits as its factorization.

172339201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 172339201 is about 13127.8025960174. The cubic root of 172339201 is about 556.4951175564.

The spelling of 172339201 in words is "one hundred seventy-two million, three hundred thirty-nine thousand, two hundred one".