865007148 has 48 divisors (see below), whose sum is σ = 2140871040. Its totient is φ = 271065600.

The previous prime is 865007111. The next prime is 865007173. The reversal of 865007148 is 841700568.

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 15 ways as a sum of consecutive naturals, for example, 15388 + ... + 44348.

It is an arithmetic number, because the mean of its divisors is an integer number (44601480).

Almost surely, 2^865007148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865007148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070435520).

865007148 is an abundant number, since it is smaller than the sum of its proper divisors (1275863892).

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

865007148 is a wasteful number, since it uses less digits than its factorization.

865007148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29118 (or 29116 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 865007148 is about 29411.0038591001. The cubic root of 865007148 is about 952.8105679835.

The spelling of 865007148 in words is "eight hundred sixty-five million, seven thousand, one hundred forty-eight".