1305607 has 2 divisors, whose sum is σ = 1305608. Its totient is φ = 1305606.

The previous prime is 1305599. The next prime is 1305637. The reversal of 1305607 is 7065031.

It is a weak prime.

It is an emirp because it is prime and its reverse (7065031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1305607 - 2³ = 1305599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652803 + 652804.

It is an arithmetic number, because the mean of its divisors is an integer number (652804).

2^1305607 is an apocalyptic number.

1305607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305607 is an equidigital number, since it uses as much as digits as its factorization.

1305607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1305607 is about 1142.6316116754. The cubic root of 1305607 is about 109.2959719739.

The spelling of 1305607 in words is "one million, three hundred five thousand, six hundred seven".