1039430081 has 6 divisors (see below), whose sum is σ = 1057349682. Its totient is φ = 1021809200.

The previous prime is 1039430059. The next prime is 1039430113. The reversal of 1039430081 is 1800349301.

It can be written as a sum of positive squares in only one way, i.e., 955799056 + 83631025 = 30916^2 + 9145^2 .

It is not a de Polignac number, because 1039430081 - 2²² = 1035235777 is a prime.

It is a super-2 number, since 2×1039430081² = 2160829786575333122, 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 (1039432081) 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 5 ways as a sum of consecutive naturals, for example, 145820 + ... + 152781.

It is an arithmetic number, because the mean of its divisors is an integer number (176224947).

Almost surely, 2^1039430081 is an apocalyptic number.

It is an amenable number.

1039430081 is a deficient number, since it is larger than the sum of its proper divisors (17919601).

1039430081 is an frugal number, since it uses more digits than its factorization.

1039430081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298719 (or 298660 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1039430081 is about 32240.1935633147. The cubic root of 1039430081 is about 1012.9742998774.

Adding to 1039430081 its reverse (1800349301), we get a palindrome (2839779382).

The spelling of 1039430081 in words is "one billion, thirty-nine million, four hundred thirty thousand, eighty-one".