867065140 has 12 divisors (see below), whose sum is σ = 1820836836. Its totient is φ = 346826048.

The previous prime is 867065099. The next prime is 867065153. The reversal of 867065140 is 41560768.

It can be written as a sum of positive squares in 2 ways, for example, as 272778256 + 594286884 = 16516^2 + 24378^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 867065140.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21676609 + ... + 21676648.

It is an arithmetic number, because the mean of its divisors is an integer number (151736403).

Almost surely, 2^867065140 is an apocalyptic number.

It is an amenable number.

867065140 is an abundant number, since it is smaller than the sum of its proper divisors (953771696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

867065140 is a wasteful number, since it uses less digits than its factorization.

867065140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43353266 (or 43353264 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 867065140 is about 29445.9698430872. The cubic root of 867065140 is about 953.5655997009.

The spelling of 867065140 in words is "eight hundred sixty-seven million, sixty-five thousand, one hundred forty".