210454315009 has 9 divisors (see below), whose sum is σ = 213188727297. Its totient is φ = 207754553604.

The previous prime is 210454315003. The next prime is 210454315039. The reversal of 210454315009 is 900513454012.

The square root of 210454315009 is 458753.

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

It is not a de Polignac number, because 210454315009 - 2⁵ = 210454314977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210454315003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36238584 + ... + 36244390.

Almost surely, 2^210454315009 is an apocalyptic number.

210454315009 is the 458753-rd square number.

210454315009 is the 229377-th centered octagonal number.

It is an amenable number.

210454315009 is a deficient number, since it is larger than the sum of its proper divisors (2734412288).

210454315009 is an frugal number, since it uses more digits than its factorization.

210454315009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11772 (or 5886 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 210454315009 in words is "two hundred ten billion, four hundred fifty-four million, three hundred fifteen thousand, nine".