1271125 has 8 divisors (see below), whose sum is σ = 1586520. Its totient is φ = 1016800.

The previous prime is 1271117. The next prime is 1271129. The reversal of 1271125 is 5211721.

It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 1267876 = 57^2 + 1126^2 .

It is not a de Polignac number, because 1271125 - 2³ = 1271117 is a prime.

1271125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271129) 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 7 ways as a sum of consecutive naturals, for example, 4960 + ... + 5209.

It is an arithmetic number, because the mean of its divisors is an integer number (198315).

2^1271125 is an apocalyptic number.

It is an amenable number.

1271125 is a deficient number, since it is larger than the sum of its proper divisors (315395).

1271125 is an equidigital number, since it uses as much as digits as its factorization.

1271125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10184 (or 10174 counting only the distinct ones).

The product of its digits is 140, while the sum is 19.

The square root of 1271125 is about 1127.4417945065. The cubic root of 1271125 is about 108.3251801885.

Adding to 1271125 its reverse (5211721), we get a palindrome (6482846).

The spelling of 1271125 in words is "one million, two hundred seventy-one thousand, one hundred twenty-five".