1088261585 has 4 divisors (see below), whose sum is σ = 1305913908. Its totient is φ = 870609264.

The previous prime is 1088261563. The next prime is 1088261593. The reversal of 1088261585 is 5851628801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5851628801 = 61 ⋅95928341.

It can be written as a sum of positive squares in 2 ways, for example, as 504990784 + 583270801 = 22472^2 + 24151^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088261585 - 2⁶ = 1088261521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108826154 + ... + 108826163.

It is an arithmetic number, because the mean of its divisors is an integer number (326478477).

Almost surely, 2^1088261585 is an apocalyptic number.

It is an amenable number.

1088261585 is a deficient number, since it is larger than the sum of its proper divisors (217652323).

1088261585 is an equidigital number, since it uses as much as digits as its factorization.

1088261585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217652322.

The product of its (nonzero) digits is 153600, while the sum is 44.

The square root of 1088261585 is about 32988.8099967246. The cubic root of 1088261585 is about 1028.5950571944.

The spelling of 1088261585 in words is "one billion, eighty-eight million, two hundred sixty-one thousand, five hundred eighty-five".