1086323509 has 2 divisors, whose sum is σ = 1086323510. Its totient is φ = 1086323508.

The previous prime is 1086323507. The next prime is 1086323519. The reversal of 1086323509 is 9053236801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 812421009 + 273902500 = 28503^2 + 16550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1086323509 - 2¹ = 1086323507 is a prime.

Together with 1086323507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1086323507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543161754 + 543161755.

It is an arithmetic number, because the mean of its divisors is an integer number (543161755).

Almost surely, 2^1086323509 is an apocalyptic number.

It is an amenable number.

1086323509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086323509 is an equidigital number, since it uses as much as digits as its factorization.

1086323509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1086323509 is about 32959.4221581629. The cubic root of 1086323509 is about 1027.9840889022.

The spelling of 1086323509 in words is "one billion, eighty-six million, three hundred twenty-three thousand, five hundred nine".