1275653 has 4 divisors (see below), whose sum is σ = 1278348. Its totient is φ = 1272960.

The previous prime is 1275643. The next prime is 1275661. The reversal of 1275653 is 3565721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158404 + 1117249 = 398^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275653 - 2¹⁰ = 1274629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275643) 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 3 ways as a sum of consecutive naturals, for example, 428 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (319587).

2^1275653 is an apocalyptic number.

It is an amenable number.

1275653 is a deficient number, since it is larger than the sum of its proper divisors (2695).

1275653 is an equidigital number, since it uses as much as digits as its factorization.

1275653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694.

The product of its digits is 6300, while the sum is 29.

The square root of 1275653 is about 1129.4480953103. The cubic root of 1275653 is about 108.4536530375.

The spelling of 1275653 in words is "one million, two hundred seventy-five thousand, six hundred fifty-three".