1277323 has 2 divisors, whose sum is σ = 1277324. Its totient is φ = 1277322.

The previous prime is 1277321. The next prime is 1277357. The reversal of 1277323 is 3237721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1277323 - 2¹ = 1277321 is a prime.

Together with 1277321, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1277321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638661 + 638662.

It is an arithmetic number, because the mean of its divisors is an integer number (638662).

2^1277323 is an apocalyptic number.

1277323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277323 is an equidigital number, since it uses as much as digits as its factorization.

1277323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 25.

The square root of 1277323 is about 1130.1871526433. The cubic root of 1277323 is about 108.5009591681.

It can be divided in two parts, 1277 and 323, that added together give a square (1600 = 40²).

The spelling of 1277323 in words is "one million, two hundred seventy-seven thousand, three hundred twenty-three".