1305061 has 2 divisors, whose sum is σ = 1305062. Its totient is φ = 1305060.

The previous prime is 1305047. The next prime is 1305097. The reversal of 1305061 is 1605031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1252161 + 52900 = 1119^2 + 230^2 .

It is an emirp because it is prime and its reverse (1605031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1305061 - 2¹¹ = 1303013 is a prime.

It is equal to p₁₀₀₃₈₄ and since 1305061 and 100384 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305011) 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, 652530 + 652531.

It is an arithmetic number, because the mean of its divisors is an integer number (652531).

2^1305061 is an apocalyptic number.

It is an amenable number.

1305061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305061 is an equidigital number, since it uses as much as digits as its factorization.

1305061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1305061 is about 1142.3926645423. The cubic root of 1305061 is about 109.2807341263.

The spelling of 1305061 in words is "one million, three hundred five thousand, sixty-one".