1088663581 has 2 divisors, whose sum is σ = 1088663582. Its totient is φ = 1088663580.

The previous prime is 1088663557. The next prime is 1088663593. The reversal of 1088663581 is 1853668801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 590927481 + 497736100 = 24309^2 + 22310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088663581 - 2¹⁹ = 1088139293 is a prime.

It is a super-2 number, since 2×1088663581² = 2370376785191487122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088667581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544331790 + 544331791.

It is an arithmetic number, because the mean of its divisors is an integer number (544331791).

Almost surely, 2^1088663581 is an apocalyptic number.

It is an amenable number.

1088663581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088663581 is an equidigital number, since it uses as much as digits as its factorization.

1088663581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 1088663581 is about 32994.9023486962. The cubic root of 1088663581 is about 1028.7216934741.

The spelling of 1088663581 in words is "one billion, eighty-eight million, six hundred sixty-three thousand, five hundred eighty-one".