140310641 has 2 divisors, whose sum is σ = 140310642. Its totient is φ = 140310640.

The previous prime is 140310637. The next prime is 140310659. The reversal of 140310641 is 146013041.

140310641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71487025 + 68823616 = 8455^2 + 8296^2 .

It is a cyclic number.

It is not a de Polignac number, because 140310641 - 2² = 140310637 is a prime.

It is not a weakly prime, because it can be changed into another prime (140310691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70155320 + 70155321.

It is an arithmetic number, because the mean of its divisors is an integer number (70155321).

Almost surely, 2^140310641 is an apocalyptic number.

It is an amenable number.

140310641 is a deficient number, since it is larger than the sum of its proper divisors (1).

140310641 is an equidigital number, since it uses as much as digits as its factorization.

140310641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 140310641 is about 11845.2792706631. The cubic root of 140310641 is about 519.6331744752.

Adding to 140310641 its reverse (146013041), we get a palindrome (286323682).

The spelling of 140310641 in words is "one hundred forty million, three hundred ten thousand, six hundred forty-one".