140328005 has 4 divisors (see below), whose sum is σ = 168393612. Its totient is φ = 112262400.

The previous prime is 140327989. The next prime is 140328011. The reversal of 140328005 is 500823041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50324836 + 90003169 = 7094^2 + 9487^2 .

It is not a de Polignac number, because 140328005 - 2⁴ = 140327989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14032796 + ... + 14032805.

It is an arithmetic number, because the mean of its divisors is an integer number (42098403).

Almost surely, 2^140328005 is an apocalyptic number.

It is an amenable number.

140328005 is a deficient number, since it is larger than the sum of its proper divisors (28065607).

140328005 is an equidigital number, since it uses as much as digits as its factorization.

140328005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28065606.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 140328005 is about 11846.0121982041. The cubic root of 140328005 is about 519.6546091485.

The spelling of 140328005 in words is "one hundred forty million, three hundred twenty-eight thousand, five".