140661241 has 8 divisors (see below), whose sum is σ = 160828160. Its totient is φ = 120512448.

The previous prime is 140661197. The next prime is 140661253. The reversal of 140661241 is 142166041.

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

It is not a de Polignac number, because 140661241 - 2¹⁵ = 140628473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140662241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24640 + ... + 29806.

It is an arithmetic number, because the mean of its divisors is an integer number (20103520).

Almost surely, 2^140661241 is an apocalyptic number.

It is an amenable number.

140661241 is a deficient number, since it is larger than the sum of its proper divisors (20166919).

140661241 is an equidigital number, since it uses as much as digits as its factorization.

140661241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9063.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 140661241 is about 11860.0691819230. The cubic root of 140661241 is about 520.0656241143.

The spelling of 140661241 in words is "one hundred forty million, six hundred sixty-one thousand, two hundred forty-one".