1088391169 has 2 divisors, whose sum is σ = 1088391170. Its totient is φ = 1088391168.

The previous prime is 1088391131. The next prime is 1088391181. The reversal of 1088391169 is 9611938801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1082081025 + 6310144 = 32895^2 + 2512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088391169 - 2¹¹ = 1088389121 is a prime.

It is a super-2 number, since 2×1088391169² = 2369190673514373122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1088391869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a Pierpont prime, being equal to 2¹¹ ⋅ 3¹² + 1.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544195584 + 544195585.

It is an arithmetic number, because the mean of its divisors is an integer number (544195585).

Almost surely, 2^1088391169 is an apocalyptic number.

It is an amenable number.

1088391169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088391169 is an equidigital number, since it uses as much as digits as its factorization.

1088391169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 1088391169 is about 32990.7739981953. The cubic root of 1088391169 is about 1028.6358819904.

The spelling of 1088391169 in words is "one billion, eighty-eight million, three hundred ninety-one thousand, one hundred sixty-nine".