1275105 has 24 divisors (see below), whose sum is σ = 2213568. Its totient is φ = 626496.

The previous prime is 1275067. The next prime is 1275107. The reversal of 1275105 is 5015721.

It is not a de Polignac number, because 1275105 - 2⁶ = 1275041 is a prime.

It is a super-2 number, since 2×1275105² = 3251785522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1275107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2284 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (92232).

2^1275105 is an apocalyptic number.

1275105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275105 is a deficient number, since it is larger than the sum of its proper divisors (938463).

1275105 is a wasteful number, since it uses less digits than its factorization.

1275105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1275105 is about 1129.2054728879. The cubic root of 1275105 is about 108.4381208318.

The spelling of 1275105 in words is "one million, two hundred seventy-five thousand, one hundred five".