1321079 has 2 divisors, whose sum is σ = 1321080. Its totient is φ = 1321078.

The previous prime is 1321063. The next prime is 1321093. The reversal of 1321079 is 9701231.

It is a strong prime.

It is an emirp because it is prime and its reverse (9701231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321079 - 2⁴ = 1321063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321379) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660539 + 660540.

It is an arithmetic number, because the mean of its divisors is an integer number (660540).

2^1321079 is an apocalyptic number.

1321079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321079 is an equidigital number, since it uses as much as digits as its factorization.

1321079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1321079 is about 1149.3820078634. The cubic root of 1321079 is about 109.7260123338.

The spelling of 1321079 in words is "one million, three hundred twenty-one thousand, seventy-nine".