140242565 has 8 divisors (see below), whose sum is σ = 172205088. Its totient is φ = 109584720.

The previous prime is 140242559. The next prime is 140242567. The reversal of 140242565 is 565242041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140242565 - 2⁴ = 140242549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140242567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325931 + ... + 326360.

It is an arithmetic number, because the mean of its divisors is an integer number (21525636).

Almost surely, 2^140242565 is an apocalyptic number.

It is an amenable number.

140242565 is a deficient number, since it is larger than the sum of its proper divisors (31962523).

140242565 is an equidigital number, since it uses as much as digits as its factorization.

140242565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652339.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 140242565 is about 11842.4053722206. The cubic root of 140242565 is about 519.5491222363.

The spelling of 140242565 in words is "one hundred forty million, two hundred forty-two thousand, five hundred sixty-five".