491120105 has 8 divisors (see below), whose sum is σ = 673536192. Its totient is φ = 336768048.

The previous prime is 491120087. The next prime is 491120107. The reversal of 491120105 is 501021194.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 491120105 - 2¹⁴ = 491103721 is a prime.

It is a super-2 number, since 2×491120105² = 482397915070422050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (491120107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7015967 + ... + 7016036.

It is an arithmetic number, because the mean of its divisors is an integer number (84192024).

Almost surely, 2^491120105 is an apocalyptic number.

It is an amenable number.

491120105 is a deficient number, since it is larger than the sum of its proper divisors (182416087).

491120105 is a wasteful number, since it uses less digits than its factorization.

491120105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14032015.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 491120105 is about 22161.2297718335. The cubic root of 491120105 is about 788.9737810038.

Adding to 491120105 its reverse (501021194), we get a palindrome (992141299).

The spelling of 491120105 in words is "four hundred ninety-one million, one hundred twenty thousand, one hundred five".