172896201 has 21 divisors (see below), whose sum is σ = 259759101. Its totient is φ = 115027452.

The previous prime is 172896169. The next prime is 172896203. The reversal of 172896201 is 102698271.

The square root of 172896201 is 13149.

It is a perfect power (a square), and thus also a powerful number.

172896201 is a `hidden beast` number, since 1 + 7 + 28 + 9 + 620 + 1 = 666.

It is not a de Polignac number, because 172896201 - 2⁵ = 172896169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172896203) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 354780 + ... + 355266.

It is an arithmetic number, because the mean of its divisors is an integer number (12369481).

Almost surely, 2^172896201 is an apocalyptic number.

172896201 is the 13149-th square number.

172896201 is the 6575-th centered octagonal number.

It is an amenable number.

172896201 is a deficient number, since it is larger than the sum of its proper divisors (86862900).

172896201 is an frugal number, since it uses more digits than its factorization.

172896201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The cubic root of 172896201 is about 557.0940032395.

Multiplying 172896201 by its sum of digits (36), we get a square (6224263236 = 78894²).

The spelling of 172896201 in words is "one hundred seventy-two million, eight hundred ninety-six thousand, two hundred one".