8131105 has 8 divisors (see below), whose sum is σ = 9891432. Its totient is φ = 6415488.

The previous prime is 8131093. The next prime is 8131111. The reversal of 8131105 is 5011318.

It can be written as a sum of positive squares in 4 ways, for example, as 2143296 + 5987809 = 1464^2 + 2447^2 .

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 8131105 - 2⁷ = 8130977 is a prime.

It is a super-2 number, since 2×8131105² = 132229737042050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10774 + ... + 11503.

It is an arithmetic number, because the mean of its divisors is an integer number (1236429).

Almost surely, 2^8131105 is an apocalyptic number.

It is an amenable number.

8131105 is a deficient number, since it is larger than the sum of its proper divisors (1760327).

8131105 is a wasteful number, since it uses less digits than its factorization.

8131105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22355.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 8131105 is about 2851.5092495028. The cubic root of 8131105 is about 201.0866271815.

The spelling of 8131105 in words is "eight million, one hundred thirty-one thousand, one hundred five".