105831001 has 4 divisors (see below), whose sum is σ = 112056372. Its totient is φ = 99605632.

The previous prime is 105830987. The next prime is 105831013. The reversal of 105831001 is 100138501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36542025 + 69288976 = 6045^2 + 8324^2 .

It is a cyclic number.

It is not a de Polignac number, because 105831001 - 2¹⁵ = 105798233 is a prime.

It is a super-2 number, since 2×105831001² = 22400401545324002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105831001.

It is not an unprimeable number, because it can be changed into a prime (105837001) 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, 3112660 + ... + 3112693.

It is an arithmetic number, because the mean of its divisors is an integer number (28014093).

Almost surely, 2^105831001 is an apocalyptic number.

It is an amenable number.

105831001 is a deficient number, since it is larger than the sum of its proper divisors (6225371).

105831001 is an equidigital number, since it uses as much as digits as its factorization.

105831001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225370.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 105831001 is about 10287.4195501107. The cubic root of 105831001 is about 473.0107031832.

Adding to 105831001 its reverse (100138501), we get a palindrome (205969502).

The spelling of 105831001 in words is "one hundred five million, eight hundred thirty-one thousand, one".