140945 has 8 divisors (see below), whose sum is σ = 193344. Its totient is φ = 96624.

The previous prime is 140939. The next prime is 140977. The reversal of 140945 is 549041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140945 - 2⁴ = 140929 is a prime.

It is a Duffinian number.

140945 is a modest number, since divided by 945 gives 140 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 140945.

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, 1979 + ... + 2048.

It is an arithmetic number, because the mean of its divisors is an integer number (24168).

2¹⁴⁰⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

140945 is a deficient number, since it is larger than the sum of its proper divisors (52399).

140945 is an equidigital number, since it uses as much as digits as its factorization.

140945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 140945 is about 375.4264242165. The cubic root of 140945 is about 52.0415102471.

Adding to 140945 its reverse (549041), we get a palindrome (689986).

The spelling of 140945 in words is "one hundred forty thousand, nine hundred forty-five".