1272853 has 4 divisors (see below), whose sum is σ = 1275660. Its totient is φ = 1270048.

The previous prime is 1272851. The next prime is 1272857. The reversal of 1272853 is 3582721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3582721 = 109 ⋅32869.

It can be written as a sum of positive squares in 2 ways, for example, as 603729 + 669124 = 777^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272853 - 2¹ = 1272851 is a prime.

It is a Duffinian number.

1272853 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (318915).

2^1272853 is an apocalyptic number.

It is an amenable number.

1272853 is a deficient number, since it is larger than the sum of its proper divisors (2807).

1272853 is an equidigital number, since it uses as much as digits as its factorization.

1272853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806.

The product of its digits is 3360, while the sum is 28.

The square root of 1272853 is about 1128.2078709174. The cubic root of 1272853 is about 108.3742446402.

The spelling of 1272853 in words is "one million, two hundred seventy-two thousand, eight hundred fifty-three".