1065434881 has 9 divisors (see below), whose sum is σ = 1239649281. Its totient is φ = 913034052.

The previous prime is 1065434879. The next prime is 1065434893. The reversal of 1065434881 is 1884345601.

The square root of 1065434881 is 32641.

It is a perfect power (a square), and thus also a powerful number.

1065434881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1065434881 - 2¹ = 1065434879 is a prime.

It is a super-2 number, since 2×1065434881² = 2270302971302968322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065434831) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 226156 + ... + 230818.

It is an arithmetic number, because the mean of its divisors is an integer number (137738809).

Almost surely, 2^1065434881 is an apocalyptic number.

1065434881 is the 32641-st square number.

1065434881 is the 16321-st centered octagonal number.

It is an amenable number.

1065434881 is a deficient number, since it is larger than the sum of its proper divisors (174214400).

1065434881 is an frugal number, since it uses more digits than its factorization.

1065434881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9340 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The cubic root of 1065434881 is about 1021.3524546257.

The spelling of 1065434881 in words is "one billion, sixty-five million, four hundred thirty-four thousand, eight hundred eighty-one".