140305241 has 4 divisors (see below), whose sum is σ = 140361984. Its totient is φ = 140248500.

The previous prime is 140305237. The next prime is 140305247. The reversal of 140305241 is 142503041.

140305241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142503041 = 173 ⋅823717.

It is a cyclic number.

It is not a de Polignac number, because 140305241 - 2² = 140305237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140305247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24485 + ... + 29666.

It is an arithmetic number, because the mean of its divisors is an integer number (35090496).

Almost surely, 2^140305241 is an apocalyptic number.

It is an amenable number.

140305241 is a deficient number, since it is larger than the sum of its proper divisors (56743).

140305241 is an equidigital number, since it uses as much as digits as its factorization.

140305241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56742.

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

The square root of 140305241 is about 11845.0513295638. The cubic root of 140305241 is about 519.6265081831.

Adding to 140305241 its reverse (142503041), we get a palindrome (282808282).

The spelling of 140305241 in words is "one hundred forty million, three hundred five thousand, two hundred forty-one".