105171005 has 4 divisors (see below), whose sum is σ = 126205212. Its totient is φ = 84136800.

The previous prime is 105170999. The next prime is 105171067. The reversal of 105171005 is 500171501.

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 46526041 + 58644964 = 6821^2 + 7658^2 .

It is not a de Polignac number, because 105171005 - 2⁸ = 105170749 is a prime.

It is a super-2 number, since 2×105171005² = 22121880585420050, 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, 10517096 + ... + 10517105.

It is an arithmetic number, because the mean of its divisors is an integer number (31551303).

Almost surely, 2^105171005 is an apocalyptic number.

It is an amenable number.

105171005 is a deficient number, since it is larger than the sum of its proper divisors (21034207).

105171005 is an equidigital number, since it uses as much as digits as its factorization.

105171005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21034206.

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 105171005 is about 10255.2915609455. The cubic root of 105171005 is about 472.0253699975.

The spelling of 105171005 in words is "one hundred five million, one hundred seventy-one thousand, five".