1272317 has 8 divisors (see below), whose sum is σ = 1336440. Its totient is φ = 1209600.

The previous prime is 1272289. The next prime is 1272329. The reversal of 1272317 is 7132721.

It can be written as a sum of positive squares in 4 ways, for example, as 436921 + 835396 = 661^2 + 914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1272317 - 2⁶ = 1272253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1272292 and 1272301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1817 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (167055).

2^1272317 is an apocalyptic number.

It is an amenable number.

1272317 is a deficient number, since it is larger than the sum of its proper divisors (64123).

1272317 is an equidigital number, since it uses as much as digits as its factorization.

1272317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its digits is 588, while the sum is 23.

The square root of 1272317 is about 1127.9703010275. The cubic root of 1272317 is about 108.3590303275.

The spelling of 1272317 in words is "one million, two hundred seventy-two thousand, three hundred seventeen".