105168491 has 4 divisors (see below), whose sum is σ = 105838512. Its totient is φ = 104498472.

The previous prime is 105168487. The next prime is 105168499. The reversal of 105168491 is 194861501.

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

It is a cyclic number.

It is not a de Polignac number, because 105168491 - 2² = 105168487 is a prime.

It is a super-2 number, since 2×105168491² = 22120822998434162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105168499) 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, 334775 + ... + 335088.

It is an arithmetic number, because the mean of its divisors is an integer number (26459628).

Almost surely, 2^105168491 is an apocalyptic number.

105168491 is a deficient number, since it is larger than the sum of its proper divisors (670021).

105168491 is an equidigital number, since it uses as much as digits as its factorization.

105168491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670020.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 105168491 is about 10255.1689893439. The cubic root of 105168491 is about 472.0216088809.

The spelling of 105168491 in words is "one hundred five million, one hundred sixty-eight thousand, four hundred ninety-one".