1308105 has 24 divisors (see below), whose sum is σ = 2325960. Its totient is φ = 679680.

The previous prime is 1308091. The next prime is 1308121. The reversal of 1308105 is 5018031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35721 + 1272384 = 189^2 + 1128^2 .

It is not a de Polignac number, because 1308105 - 2¹⁰ = 1307081 is a prime.

It is a super-2 number, since 2×1308105² = 3422277382050, which contains 22 as substring.

1308105 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1491 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (96915).

2^1308105 is an apocalyptic number.

1308105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1308105 is a deficient number, since it is larger than the sum of its proper divisors (1017855).

1308105 is a wasteful number, since it uses less digits than its factorization.

1308105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1308105 is about 1143.7241800364. The cubic root of 1308105 is about 109.3656323950.

The spelling of 1308105 in words is "one million, three hundred eight thousand, one hundred five".