1275123 has 8 divisors (see below), whose sum is σ = 1755136. Its totient is φ = 822600.

The previous prime is 1275121. The next prime is 1275133. The reversal of 1275123 is 3215721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1275123 - 2¹ = 1275121 is a prime.

It is a Duffinian number.

1275123 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1275123.

It is not an unprimeable number, because it can be changed into a prime (1275121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6763 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (219392).

2^1275123 is an apocalyptic number.

1275123 is a deficient number, since it is larger than the sum of its proper divisors (480013).

1275123 is a wasteful number, since it uses less digits than its factorization.

1275123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13745.

The product of its digits is 420, while the sum is 21.

The square root of 1275123 is about 1129.2134430656. The cubic root of 1275123 is about 108.4386310844.

The spelling of 1275123 in words is "one million, two hundred seventy-five thousand, one hundred twenty-three".