140010641 has 2 divisors, whose sum is σ = 140010642. Its totient is φ = 140010640.

The previous prime is 140010631. The next prime is 140010659. The reversal of 140010641 is 146010041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104857600 + 35153041 = 10240^2 + 5929^2 .

It is a cyclic number.

It is not a de Polignac number, because 140010641 - 2²² = 135816337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140010631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70005320 + 70005321.

It is an arithmetic number, because the mean of its divisors is an integer number (70005321).

Almost surely, 2^140010641 is an apocalyptic number.

It is an amenable number.

140010641 is a deficient number, since it is larger than the sum of its proper divisors (1).

140010641 is an equidigital number, since it uses as much as digits as its factorization.

140010641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 140010641 is about 11832.6092219764. The cubic root of 140010641 is about 519.2625654065.

Adding to 140010641 its reverse (146010041), we get a palindrome (286020682).

The spelling of 140010641 in words is "one hundred forty million, ten thousand, six hundred forty-one".