1585318052 has 12 divisors (see below), whose sum is σ = 2863800576. Its totient is φ = 767089320.

The previous prime is 1585317997. The next prime is 1585318057. The reversal of 1585318052 is 2508135851.

It is a junction number, because it is equal to n+sod(n) for n = 1585317997 and 1585318015.

It is not an unprimeable number, because it can be changed into a prime (1585318057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6392288 + ... + 6392535.

It is an arithmetic number, because the mean of its divisors is an integer number (238650048).

Almost surely, 2^1585318052 is an apocalyptic number.

It is an amenable number.

1585318052 is a deficient number, since it is larger than the sum of its proper divisors (1278482524).

1585318052 is a wasteful number, since it uses less digits than its factorization.

1585318052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12784858 (or 12784856 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 1585318052 is about 39816.0526923501. The cubic root of 1585318052 is about 1166.0185734150.

The spelling of 1585318052 in words is "one billion, five hundred eighty-five million, three hundred eighteen thousand, fifty-two".