1030509 has 8 divisors (see below), whose sum is σ = 1526720. Its totient is φ = 686988.

The previous prime is 1030493. The next prime is 1030511. The reversal of 1030509 is 9050301.

It is not a de Polignac number, because 1030509 - 2⁴ = 1030493 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030491 and 1030500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19057 + ... + 19110.

It is an arithmetic number, because the mean of its divisors is an integer number (190840).

2^1030509 is an apocalyptic number.

It is an amenable number.

1030509 is a deficient number, since it is larger than the sum of its proper divisors (496211).

1030509 is an equidigital number, since it uses as much as digits as its factorization.

1030509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38176 (or 38170 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 1030509 is about 1015.1398918376. The cubic root of 1030509 is about 101.0067962619.

The spelling of 1030509 in words is "one million, thirty thousand, five hundred nine".