10391105 has 4 divisors (see below), whose sum is σ = 12469332. Its totient is φ = 8312880.

The previous prime is 10391093. The next prime is 10391137. The reversal of 10391105 is 50119301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50119301 = 83 ⋅603847.

It can be written as a sum of positive squares in 2 ways, for example, as 1723969 + 8667136 = 1313^2 + 2944^2 .

It is not a de Polignac number, because 10391105 - 2⁶ = 10391041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039106 + ... + 1039115.

It is an arithmetic number, because the mean of its divisors is an integer number (3117333).

Almost surely, 2^10391105 is an apocalyptic number.

It is an amenable number.

10391105 is a deficient number, since it is larger than the sum of its proper divisors (2078227).

10391105 is an equidigital number, since it uses as much as digits as its factorization.

10391105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078226.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 10391105 is about 3223.5236931036. The cubic root of 10391105 is about 218.2163284795.

The spelling of 10391105 in words is "ten million, three hundred ninety-one thousand, one hundred five".