1272017 has 4 divisors (see below), whose sum is σ = 1275300. Its totient is φ = 1268736.

The previous prime is 1272001. The next prime is 1272043. The reversal of 1272017 is 7102721.

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 638401 + 633616 = 799^2 + 796^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272017 - 2⁴ = 1272001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272017.

It is not an unprimeable number, because it can be changed into a prime (1272067) 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, 968 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (318825).

2^1272017 is an apocalyptic number.

It is an amenable number.

1272017 is a deficient number, since it is larger than the sum of its proper divisors (3283).

1272017 is an equidigital number, since it uses as much as digits as its factorization.

1272017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1272017 is about 1127.8373109629. The cubic root of 1272017 is about 108.3505129888.

Adding to 1272017 its reverse (7102721), we get a palindrome (8374738).

The spelling of 1272017 in words is "one million, two hundred seventy-two thousand, seventeen".