1275039 has 6 divisors (see below), whose sum is σ = 1841736. Its totient is φ = 850020.

The previous prime is 1275019. The next prime is 1275041. The reversal of 1275039 is 9305721.

It is not a de Polignac number, because 1275039 - 2¹¹ = 1272991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275019) 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 5 ways as a sum of consecutive naturals, for example, 70827 + ... + 70844.

It is an arithmetic number, because the mean of its divisors is an integer number (306956).

2^1275039 is an apocalyptic number.

1275039 is a deficient number, since it is larger than the sum of its proper divisors (566697).

1275039 is a wasteful number, since it uses less digits than its factorization.

1275039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141677 (or 141674 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1275039 is about 1129.1762484218. The cubic root of 1275039 is about 108.4362498645.

The spelling of 1275039 in words is "one million, two hundred seventy-five thousand, thirty-nine".