1065995489 has 16 divisors (see below), whose sum is σ = 1216909008. Its totient is φ = 925059072.

The previous prime is 1065995479. The next prime is 1065995507. The reversal of 1065995489 is 9845995601.

It can be written as a sum of positive squares in 8 ways, for example, as 30250000 + 1035745489 = 5500^2 + 32183^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065995489 - 2²⁴ = 1049218273 is a prime.

It is a super-2 number, since 2×1065995489² = 2272692765136698242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1065995429) 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, 240239 + ... + 244635.

It is an arithmetic number, because the mean of its divisors is an integer number (76056813).

Almost surely, 2^1065995489 is an apocalyptic number.

It is an amenable number.

1065995489 is a deficient number, since it is larger than the sum of its proper divisors (150913519).

1065995489 is a wasteful number, since it uses less digits than its factorization.

1065995489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The square root of 1065995489 is about 32649.5863526630. The cubic root of 1065995489 is about 1021.5315608199.

The spelling of 1065995489 in words is "one billion, sixty-five million, nine hundred ninety-five thousand, four hundred eighty-nine".