685143148 has 12 divisors (see below), whose sum is σ = 1205088192. Its totient is φ = 340832240.

The previous prime is 685143131. The next prime is 685143181. The reversal of 685143148 is 841341586.

685143148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×685143148² = 938842266502699808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 685143148.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433948 + ... + 435523.

It is an arithmetic number, because the mean of its divisors is an integer number (100424016).

Almost surely, 2^685143148 is an apocalyptic number.

It is an amenable number.

685143148 is a deficient number, since it is larger than the sum of its proper divisors (519945044).

685143148 is a wasteful number, since it uses less digits than its factorization.

685143148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869672 (or 869670 counting only the distinct ones).

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

The square root of 685143148 is about 26175.2392157168. The cubic root of 685143148 is about 881.5773826602.

The spelling of 685143148 in words is "six hundred eighty-five million, one hundred forty-three thousand, one hundred forty-eight".