1065561027 has 16 divisors (see below), whose sum is σ = 1455336960. Its totient is φ = 693114912.

The previous prime is 1065561023. The next prime is 1065561031. The reversal of 1065561027 is 7201655601.

It is an interprime number because it is at equal distance from previous prime (1065561023) and next prime (1065561031).

It is not a de Polignac number, because 1065561027 - 2² = 1065561023 is a prime.

It is a super-2 number, since 2×1065561027² = 2270840604522589458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065561023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134038 + ... + 141764.

It is an arithmetic number, because the mean of its divisors is an integer number (90958560).

Almost surely, 2^1065561027 is an apocalyptic number.

1065561027 is a deficient number, since it is larger than the sum of its proper divisors (389775933).

1065561027 is a wasteful number, since it uses less digits than its factorization.

1065561027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1065561027 is about 32642.9322671846. The cubic root of 1065561027 is about 1021.3927619357.

The spelling of 1065561027 in words is "one billion, sixty-five million, five hundred sixty-one thousand, twenty-seven".