1272329 has 2 divisors, whose sum is σ = 1272330. Its totient is φ = 1272328.

The previous prime is 1272289. The next prime is 1272343. The reversal of 1272329 is 9232721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906304 + 366025 = 952^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272329 - 2¹² = 1268233 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1272298 and 1272307.

It is not a weakly prime, because it can be changed into another prime (1272379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636164 + 636165.

It is an arithmetic number, because the mean of its divisors is an integer number (636165).

2^1272329 is an apocalyptic number.

It is an amenable number.

1272329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272329 is an equidigital number, since it uses as much as digits as its factorization.

1272329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 1272329 is about 1127.9756203039. The cubic root of 1272329 is about 108.3593709932.

The spelling of 1272329 in words is "one million, two hundred seventy-two thousand, three hundred twenty-nine".