105298303009 has 3 divisors (see below), whose sum is σ = 105298627507. Its totient is φ = 105297978512.

The previous prime is 105298303007. The next prime is 105298303027. The reversal of 105298303009 is 900303892501.

The square root of 105298303009 is 324497.

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, and also an emirpimes, since its reverse is a distinct semiprime: 900303892501 = 13 ⋅69254145577.

It can be written as a sum of positive squares in only one way, i.e., 71489390625 + 33808912384 = 267375^2 + 183872^2 .

It is not a de Polignac number, because 105298303009 - 2¹ = 105298303007 is a prime.

It is a super-2 number, since 2×105298303009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105298303007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 162249 + ... + 486745.

Almost surely, 2^105298303009 is an apocalyptic number.

105298303009 is the 324497-th square number.

105298303009 is the 162249-th centered octagonal number.

It is an amenable number.

105298303009 is a deficient number, since it is larger than the sum of its proper divisors (324498).

105298303009 is an frugal number, since it uses more digits than its factorization.

105298303009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648994 (or 324497 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 105298303009 in words is "one hundred five billion, two hundred ninety-eight million, three hundred three thousand, nine".