1275671 has 4 divisors (see below), whose sum is σ = 1279200. Its totient is φ = 1272144.

The previous prime is 1275667. The next prime is 1275683. The reversal of 1275671 is 1765721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1765721 = 509 ⋅3469.

It is a cyclic number.

It is not a de Polignac number, because 1275671 - 2² = 1275667 is a prime.

It is a Duffinian number.

1275671 is a Rhonda number in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275601) 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 3 ways as a sum of consecutive naturals, for example, 1151 + ... + 1968.

It is an arithmetic number, because the mean of its divisors is an integer number (319800).

2^1275671 is an apocalyptic number.

1275671 is a deficient number, since it is larger than the sum of its proper divisors (3529).

1275671 is an equidigital number, since it uses as much as digits as its factorization.

1275671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528.

The product of its digits is 2940, while the sum is 29.

The square root of 1275671 is about 1129.4560637758. The cubic root of 1275671 is about 108.4541631440.

The spelling of 1275671 in words is "one million, two hundred seventy-five thousand, six hundred seventy-one".