207172147 has 12 divisors (see below), whose sum is σ = 259535136. Its totient is φ = 163915920.

The previous prime is 207172127. The next prime is 207172211. The reversal of 207172147 is 741271702.

It is not a de Polignac number, because 207172147 - 2¹⁵ = 207139379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (207172117) 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 11 ways as a sum of consecutive naturals, for example, 161979 + ... + 163252.

It is an arithmetic number, because the mean of its divisors is an integer number (21627928).

Almost surely, 2^207172147 is an apocalyptic number.

207172147 is a deficient number, since it is larger than the sum of its proper divisors (52362989).

207172147 is a wasteful number, since it uses less digits than its factorization.

207172147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325258 (or 325251 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 207172147 is about 14393.4758484530. The cubic root of 207172147 is about 591.7121072112.

The spelling of 207172147 in words is "two hundred seven million, one hundred seventy-two thousand, one hundred forty-seven".