105326209 has 4 divisors (see below), whose sum is σ = 105352240. Its totient is φ = 105300180.

The previous prime is 105326183. The next prime is 105326213. The reversal of 105326209 is 902623501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105326209 is a prime.

It is a super-2 number, since 2×105326209² = 22187220604623362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105326239) 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 3 ways as a sum of consecutive naturals, for example, 5499 + ... + 15520.

It is an arithmetic number, because the mean of its divisors is an integer number (26338060).

Almost surely, 2^105326209 is an apocalyptic number.

It is an amenable number.

105326209 is a deficient number, since it is larger than the sum of its proper divisors (26031).

105326209 is an equidigital number, since it uses as much as digits as its factorization.

105326209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26030.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 105326209 is about 10262.8557916401. The cubic root of 105326209 is about 472.2574498615.

The spelling of 105326209 in words is "one hundred five million, three hundred twenty-six thousand, two hundred nine".