136173546289 has 9 divisors (see below), whose sum is σ = 149682822681. Its totient is φ = 123790442820.

The previous prime is 136173546281. The next prime is 136173546361. The reversal of 136173546289 is 982645371631.

It is a happy number.

The square root of 136173546289 is 369017.

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

It is not a de Polignac number, because 136173546289 - 2³ = 136173546281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136173546281) 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, 4042414 + ... + 4075960.

Almost surely, 2^136173546289 is an apocalyptic number.

136173546289 is the 369017-th square number.

136173546289 is the 184509-th centered octagonal number.

It is an amenable number.

136173546289 is a deficient number, since it is larger than the sum of its proper divisors (13509276392).

136173546289 is an frugal number, since it uses more digits than its factorization.

136173546289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67116 (or 33558 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The spelling of 136173546289 in words is "one hundred thirty-six billion, one hundred seventy-three million, five hundred forty-six thousand, two hundred eighty-nine".