140465 has 8 divisors (see below), whose sum is σ = 181608. Its totient is φ = 103680.

The previous prime is 140453. The next prime is 140473. The reversal of 140465 is 564041.

It is a happy number.

140465 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 4 ways, for example, as 5041 + 135424 = 71^2 + 368^2 .

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

It is not a de Polignac number, because 140465 - 2⁴ = 140449 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140465.

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, 1016 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (22701).

2¹⁴⁰⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

140465 is a deficient number, since it is larger than the sum of its proper divisors (41143).

140465 is a wasteful number, since it uses less digits than its factorization.

140465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140465 is about 374.7866059506. The cubic root of 140465 is about 51.9823658155.

The spelling of 140465 in words is "one hundred forty thousand, four hundred sixty-five".