1039955281 has 6 divisors (see below), whose sum is σ = 1087137170. Its totient is φ = 994739328.

The previous prime is 1039955261. The next prime is 1039955309. The reversal of 1039955281 is 1825599301.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 905047056 + 134908225 = 30084^2 + 11615^2 .

It is not a de Polignac number, because 1039955281 - 2⁵ = 1039955249 is a prime.

It is a super-2 number, since 2×1039955281² = 2163013972959577922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1039955261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 982416 + ... + 983473.

Almost surely, 2^1039955281 is an apocalyptic number.

It is an amenable number.

1039955281 is a deficient number, since it is larger than the sum of its proper divisors (47181889).

1039955281 is an equidigital number, since it uses as much as digits as its factorization.

1039955281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965935 (or 1965912 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 1039955281 is about 32248.3376470788. The cubic root of 1039955281 is about 1013.1448819853.

The spelling of 1039955281 in words is "one billion, thirty-nine million, nine hundred fifty-five thousand, two hundred eighty-one".