140565 has 8 divisors (see below), whose sum is σ = 224928. Its totient is φ = 74960.

The previous prime is 140557. The next prime is 140587. The reversal of 140565 is 565041.

It is a happy number.

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

It is not a de Polignac number, because 140565 - 2³ = 140557 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4671 + ... + 4700.

It is an arithmetic number, because the mean of its divisors is an integer number (28116).

2¹⁴⁰⁵⁶⁵ is an apocalyptic number.

140565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140565 is a deficient number, since it is larger than the sum of its proper divisors (84363).

140565 is an equidigital number, since it uses as much as digits as its factorization.

140565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9379.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 140565 is about 374.9199914648. The cubic root of 140565 is about 51.9946986706.

The spelling of 140565 in words is "one hundred forty thousand, five hundred sixty-five".