1039855144 has 8 divisors (see below), whose sum is σ = 1949728410. Its totient is φ = 519927568.

The previous prime is 1039855127. The next prime is 1039855151. The reversal of 1039855144 is 4415589301.

It can be written as a sum of positive squares in only one way, i.e., 831630244 + 208224900 = 28838^2 + 14430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1039855097 and 1039855106.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64990939 + ... + 64990954.

Almost surely, 2^1039855144 is an apocalyptic number.

It is an amenable number.

1039855144 is a deficient number, since it is larger than the sum of its proper divisors (909873266).

1039855144 is a wasteful number, since it uses less digits than its factorization.

1039855144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129981899 (or 129981895 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1039855144 is about 32246.7850180448. The cubic root of 1039855144 is about 1013.1123624634.

The spelling of 1039855144 in words is "one billion, thirty-nine million, eight hundred fifty-five thousand, one hundred forty-four".