1305011 has 2 divisors, whose sum is σ = 1305012. Its totient is φ = 1305010.

The previous prime is 1304987. The next prime is 1305013. The reversal of 1305011 is 1105031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1305011 - 2¹⁰ = 1303987 is a prime.

Together with 1305013, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304983 and 1305001.

It is not a weakly prime, because it can be changed into another prime (1305013) 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, 652505 + 652506.

It is an arithmetic number, because the mean of its divisors is an integer number (652506).

2^1305011 is an apocalyptic number.

1305011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305011 is an equidigital number, since it uses as much as digits as its factorization.

1305011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 1305011 is about 1142.3707804386. The cubic root of 1305011 is about 109.2793385067.

The spelling of 1305011 in words is "one million, three hundred five thousand, eleven".