1125305 has 4 divisors (see below), whose sum is σ = 1350372. Its totient is φ = 900240.

The previous prime is 1125283. The next prime is 1125317. The reversal of 1125305 is 5035211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5035211 = 1277 ⋅3943.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 426409 = 836^2 + 653^2 .

It is not a de Polignac number, because 1125305 - 2¹⁶ = 1059769 is a prime.

It is a super-2 number, since 2×1125305² = 2532622686050, which contains 22 as substring.

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, 112526 + ... + 112535.

It is an arithmetic number, because the mean of its divisors is an integer number (337593).

2^1125305 is an apocalyptic number.

It is an amenable number.

1125305 is a deficient number, since it is larger than the sum of its proper divisors (225067).

1125305 is an equidigital number, since it uses as much as digits as its factorization.

1125305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225066.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1125305 is about 1060.8039404150. The cubic root of 1125305 is about 104.0135892006.

The spelling of 1125305 in words is "one million, one hundred twenty-five thousand, three hundred five".