1010509 has 2 divisors, whose sum is σ = 1010510. Its totient is φ = 1010508.

The previous prime is 1010501. The next prime is 1010519. The reversal of 1010509 is 9050101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 484 = 1005^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010509 - 2³ = 1010501 is a prime.

It is a super-2 number, since 2×1010509² = 2042256878162, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1010492 and 1010501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010501) 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, 505254 + 505255.

It is an arithmetic number, because the mean of its divisors is an integer number (505255).

2^1010509 is an apocalyptic number.

It is an amenable number.

1010509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010509 is an equidigital number, since it uses as much as digits as its factorization.

1010509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1010509 is about 1005.2407671797. The cubic root of 1010509 is about 100.3490800135.

The spelling of 1010509 in words is "one million, ten thousand, five hundred nine".