140865128 has 32 divisors (see below), whose sum is σ = 280470600. Its totient is φ = 66097152.

The previous prime is 140865121. The next prime is 140865139. The reversal of 140865128 is 821568041.

140865128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 136936804 + 3928324 = 11702^2 + 1982^2 .

It is not an unprimeable number, because it can be changed into a prime (140865121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52688 + ... + 55296.

Almost surely, 2^140865128 is an apocalyptic number.

It is an amenable number.

140865128 is a deficient number, since it is larger than the sum of its proper divisors (139605472).

140865128 is a wasteful number, since it uses less digits than its factorization.

140865128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 140865128 is about 11868.6615926144. The cubic root of 140865128 is about 520.3167793682.

The spelling of 140865128 in words is "one hundred forty million, eight hundred sixty-five thousand, one hundred twenty-eight".