1079505209 has 2 divisors, whose sum is σ = 1079505210. Its totient is φ = 1079505208.

The previous prime is 1079505173. The next prime is 1079505263. The reversal of 1079505209 is 9025059701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072890025 + 6615184 = 32755^2 + 2572^2 .

It is a cyclic number.

It is not a de Polignac number, because 1079505209 - 2²⁴ = 1062727993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1079505269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539752604 + 539752605.

It is an arithmetic number, because the mean of its divisors is an integer number (539752605).

Almost surely, 2^1079505209 is an apocalyptic number.

It is an amenable number.

1079505209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1079505209 is an equidigital number, since it uses as much as digits as its factorization.

1079505209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 1079505209 is about 32855.8245825607. The cubic root of 1079505209 is about 1025.8288624599.

The spelling of 1079505209 in words is "one billion, seventy-nine million, five hundred five thousand, two hundred nine".