1061509 has 2 divisors, whose sum is σ = 1061510. Its totient is φ = 1061508.

The previous prime is 1061483. The next prime is 1061513. The reversal of 1061509 is 9051601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540225 + 521284 = 735^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061509 - 2¹⁷ = 930437 is a prime.

It is a super-2 number, since 2×1061509² = 2253602714162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1061509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530754 + 530755.

It is an arithmetic number, because the mean of its divisors is an integer number (530755).

2^1061509 is an apocalyptic number.

It is an amenable number.

1061509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061509 is an equidigital number, since it uses as much as digits as its factorization.

1061509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 1061509 is about 1030.2955886541. The cubic root of 1061509 is about 102.0096428151.

The spelling of 1061509 in words is "one million, sixty-one thousand, five hundred nine".