1309073 has 2 divisors, whose sum is σ = 1309074. Its totient is φ = 1309072.

The previous prime is 1309067. The next prime is 1309079. The reversal of 1309073 is 3709031.

It is a balanced prime because it is at equal distance from previous prime (1309067) and next prime (1309079).

It can be written as a sum of positive squares in only one way, i.e., 976144 + 332929 = 988^2 + 577^2 .

It is an emirp because it is prime and its reverse (3709031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1309073 - 2⁴ = 1309057 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (1309079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654536 + 654537.

It is an arithmetic number, because the mean of its divisors is an integer number (654537).

2^1309073 is an apocalyptic number.

It is an amenable number.

1309073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309073 is an equidigital number, since it uses as much as digits as its factorization.

1309073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 1309073 is about 1144.1472807292. The cubic root of 1309073 is about 109.3926026635.

The spelling of 1309073 in words is "one million, three hundred nine thousand, seventy-three".