1065916439 has 16 divisors (see below), whose sum is σ = 1345932288. Its totient is φ = 822509952.

The previous prime is 1065916417. The next prime is 1065916451. The reversal of 1065916439 is 9346195601.

1065916439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065916439 is a prime.

It is a super-2 number, since 2×1065916439² = 2272355709860881442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1065916439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065916039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191987 + ... + 197460.

It is an arithmetic number, because the mean of its divisors is an integer number (84120768).

Almost surely, 2^1065916439 is an apocalyptic number.

1065916439 is a deficient number, since it is larger than the sum of its proper divisors (280015849).

1065916439 is a wasteful number, since it uses less digits than its factorization.

1065916439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389494.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 1065916439 is about 32648.3757482666. The cubic root of 1065916439 is about 1021.5063092853.

The spelling of 1065916439 in words is "one billion, sixty-five million, nine hundred sixteen thousand, four hundred thirty-nine".