140568065 has 16 divisors (see below), whose sum is σ = 192018816. Its totient is φ = 97785600.

The previous prime is 140568013. The next prime is 140568067. The reversal of 140568065 is 560865041.

It is a happy number.

It is not a de Polignac number, because 140568065 - 2¹⁰ = 140567041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140568067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54296 + ... + 56825.

It is an arithmetic number, because the mean of its divisors is an integer number (12001176).

Almost surely, 2^140568065 is an apocalyptic number.

It is an amenable number.

140568065 is a deficient number, since it is larger than the sum of its proper divisors (51450751).

140568065 is a wasteful number, since it uses less digits than its factorization.

140568065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111160.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 140568065 is about 11856.1403922187. The cubic root of 140568065 is about 519.9507658021.

The spelling of 140568065 in words is "one hundred forty million, five hundred sixty-eight thousand, sixty-five".