140841 has 6 divisors (see below), whose sum is σ = 203450. Its totient is φ = 93888.

The previous prime is 140839. The next prime is 140863. The reversal of 140841 is 148041.

It can be written as a sum of positive squares in only one way, i.e., 99225 + 41616 = 315^2 + 204^2 .

It is not a de Polignac number, because 140841 - 2¹ = 140839 is a prime.

It is a Duffinian number.

It is a Curzon number.

140841 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (140831) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 7816 + ... + 7833.

2¹⁴⁰⁸⁴¹ is an apocalyptic number.

It is an amenable number.

140841 is a deficient number, since it is larger than the sum of its proper divisors (62609).

140841 is a wasteful number, since it uses less digits than its factorization.

140841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15655 (or 15652 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 140841 is about 375.2878894929. The cubic root of 140841 is about 52.0287070288.

Adding to 140841 its reverse (148041), we get a palindrome (288882).

The spelling of 140841 in words is "one hundred forty thousand, eight hundred forty-one".