207158449 has 9 divisors (see below), whose sum is σ = 213457377. Its totient is φ = 201041424.

The previous prime is 207158443. The next prime is 207158453. The reversal of 207158449 is 944851702.

The square root of 207158449 is 14393.

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 6426225 + 200732224 = 2535^2 + 14168^2 .

It is not a de Polignac number, because 207158449 - 2⁵ = 207158417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207158443) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 532347 + ... + 532735.

Almost surely, 2^207158449 is an apocalyptic number.

207158449 is the 14393-rd square number.

207158449 is the 7197-th centered octagonal number.

It is an amenable number.

207158449 is a deficient number, since it is larger than the sum of its proper divisors (6298928).

207158449 is an frugal number, since it uses more digits than its factorization.

207158449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The cubic root of 207158449 is about 591.6990658006.

The spelling of 207158449 in words is "two hundred seven million, one hundred fifty-eight thousand, four hundred forty-nine".