105331805 has 4 divisors (see below), whose sum is σ = 126398172. Its totient is φ = 84265440.

The previous prime is 105331783. The next prime is 105331879. The reversal of 105331805 is 508133501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 508133501 = 569 ⋅893029.

It can be written as a sum of positive squares in 2 ways, for example, as 28366276 + 76965529 = 5326^2 + 8773^2 .

It is not a de Polignac number, because 105331805 - 2¹⁶ = 105266269 is a prime.

It is a super-2 number, since 2×105331805² = 22189578289116050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10533176 + ... + 10533185.

It is an arithmetic number, because the mean of its divisors is an integer number (31599543).

Almost surely, 2^105331805 is an apocalyptic number.

It is an amenable number.

105331805 is a deficient number, since it is larger than the sum of its proper divisors (21066367).

105331805 is an equidigital number, since it uses as much as digits as its factorization.

105331805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21066366.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 105331805 is about 10263.1284216851. The cubic root of 105331805 is about 472.2658134205.

The spelling of 105331805 in words is "one hundred five million, three hundred thirty-one thousand, eight hundred five".