207800134201 has 27 divisors (see below), whose sum is σ = 236721811053. Its totient is φ = 182267463840.

The previous prime is 207800134181. The next prime is 207800134229. The reversal of 207800134201 is 102431008702.

The square root of 207800134201 is 455851.

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

It can be written as a sum of positive squares in 4 ways, for example, as 47479974201 + 160320160000 = 217899^2 + 400400^2 .

It is not a de Polignac number, because 207800134201 - 2¹¹ = 207800132153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 207800134201.

It is not an unprimeable number, because it can be changed into a prime (207800134271) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 145415755 + ... + 145417183.

Almost surely, 2^207800134201 is an apocalyptic number.

207800134201 is the 455851-st square number.

207800134201 is the 227926-th centered octagonal number.

It is an amenable number.

207800134201 is a deficient number, since it is larger than the sum of its proper divisors (28921676852).

207800134201 is an frugal number, since it uses more digits than its factorization.

207800134201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 207800134201 in words is "two hundred seven billion, eight hundred million, one hundred thirty-four thousand, two hundred one".