105323581 has 4 divisors (see below), whose sum is σ = 114898464. Its totient is φ = 95748700.

The previous prime is 105323549. The next prime is 105323609. The reversal of 105323581 is 185323501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 185323501 = 11 ⋅16847591.

It is a cyclic number.

It is not a de Polignac number, because 105323581 - 2⁵ = 105323549 is a prime.

It is a super-2 number, since 2×105323581² = 22186113429327122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105323501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4787425 + ... + 4787446.

It is an arithmetic number, because the mean of its divisors is an integer number (28724616).

Almost surely, 2^105323581 is an apocalyptic number.

105323581 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105323581 is a deficient number, since it is larger than the sum of its proper divisors (9574883).

105323581 is an equidigital number, since it uses as much as digits as its factorization.

105323581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574882.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 105323581 is about 10262.7277563034. The cubic root of 105323581 is about 472.2535220550.

The spelling of 105323581 in words is "one hundred five million, three hundred twenty-three thousand, five hundred eighty-one".