200715137755609 has 3 divisors (see below), whose sum is σ = 200715151923007. Its totient is φ = 200715123588212.

The previous prime is 200715137755579. The next prime is 200715137755619. The reversal of 200715137755609 is 906557731517002.

The square root of 200715137755609 is 14167397.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 51353204193225 + 149361933562384 = 7166115^2 + 12221372^2 .

It is not a de Polignac number, because 200715137755609 - 2⁷ = 200715137755481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200715137755619) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7083699 + ... + 21251095.

Almost surely, 2^{200715137755609} is an apocalyptic number.

200715137755609 is the 14167397-th square number.

200715137755609 is the 7083699-th centered octagonal number.

It is an amenable number.

200715137755609 is a deficient number, since it is larger than the sum of its proper divisors (14167398).

200715137755609 is an frugal number, since it uses more digits than its factorization.

200715137755609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28334794 (or 14167397 counting only the distinct ones).

The product of its (nonzero) digits is 13891500, while the sum is 58.

The spelling of 200715137755609 in words is "two hundred trillion, seven hundred fifteen billion, one hundred thirty-seven million, seven hundred fifty-five thousand, six hundred nine".