10491105 has 32 divisors (see below), whose sum is σ = 17915904. Its totient is φ = 5230016.

The previous prime is 10491083. The next prime is 10491109. The reversal of 10491105 is 50119401.

It is not a de Polignac number, because 10491105 - 2⁹ = 10490593 is a prime.

It is a super-2 number, since 2×10491105² = 220126568242050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10491109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15892 + ... + 16538.

It is an arithmetic number, because the mean of its divisors is an integer number (559872).

Almost surely, 2^10491105 is an apocalyptic number.

10491105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10491105 is a deficient number, since it is larger than the sum of its proper divisors (7424799).

10491105 is a wasteful number, since it uses less digits than its factorization.

10491105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 10491105 is about 3238.9975301009. The cubic root of 10491105 is about 218.9141048860.

The spelling of 10491105 in words is "ten million, four hundred ninety-one thousand, one hundred five".