140463565 has 16 divisors (see below), whose sum is σ = 184208256. Its totient is φ = 101972800.

The previous prime is 140463563. The next prime is 140463569. The reversal of 140463565 is 565364041.

It is not a de Polignac number, because 140463565 - 2¹ = 140463563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140463565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140463563) 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, 33960 + ... + 37870.

It is an arithmetic number, because the mean of its divisors is an integer number (11513016).

Almost surely, 2^140463565 is an apocalyptic number.

It is an amenable number.

140463565 is a deficient number, since it is larger than the sum of its proper divisors (43744691).

140463565 is a wasteful number, since it uses less digits than its factorization.

140463565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 140463565 is about 11851.7325737632. The cubic root of 140463565 is about 519.8218879640.

The spelling of 140463565 in words is "one hundred forty million, four hundred sixty-three thousand, five hundred sixty-five".