1082306509 has 4 divisors (see below), whose sum is σ = 1082581020. Its totient is φ = 1082032000.

The previous prime is 1082306507. The next prime is 1082306527. The reversal of 1082306509 is 9056032801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9056032801 = 773 ⋅11715437.

It can be written as a sum of positive squares in 2 ways, for example, as 231709284 + 850597225 = 15222^2 + 29165^2 .

It is a cyclic number.

It is not a de Polignac number, because 1082306509 - 2¹ = 1082306507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082306507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131254 + ... + 139255.

It is an arithmetic number, because the mean of its divisors is an integer number (270645255).

Almost surely, 2^1082306509 is an apocalyptic number.

It is an amenable number.

1082306509 is a deficient number, since it is larger than the sum of its proper divisors (274511).

1082306509 is an equidigital number, since it uses as much as digits as its factorization.

1082306509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274510.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1082306509 is about 32898.4271508533. The cubic root of 1082306509 is about 1026.7154329148.

The spelling of 1082306509 in words is "one billion, eighty-two million, three hundred six thousand, five hundred nine".