207172201 has 16 divisors (see below), whose sum is σ = 224674560. Its totient is φ = 190442560.

The previous prime is 207172127. The next prime is 207172211. The reversal of 207172201 is 102271702.

207172201 = 190² + 191² + ... + 856².

It is a cyclic number.

It is not a de Polignac number, because 207172201 - 2⁷ = 207172073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207172211) 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 15 ways as a sum of consecutive naturals, for example, 174831 + ... + 176011.

It is an arithmetic number, because the mean of its divisors is an integer number (14042160).

Almost surely, 2^207172201 is an apocalyptic number.

It is an amenable number.

207172201 is a deficient number, since it is larger than the sum of its proper divisors (17502359).

207172201 is a wasteful number, since it uses less digits than its factorization.

207172201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 207172201 is about 14393.4777243028. The cubic root of 207172201 is about 591.7121586216.

The spelling of 207172201 in words is "two hundred seven million, one hundred seventy-two thousand, two hundred one".