140104441 has 2 divisors, whose sum is σ = 140104442. Its totient is φ = 140104440.

The previous prime is 140104439. The next prime is 140104451. The reversal of 140104441 is 144401041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85285225 + 54819216 = 9235^2 + 7404^2 .

It is an emirp because it is prime and its reverse (144401041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140104441 - 2¹ = 140104439 is a prime.

Together with 140104439, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140104451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70052220 + 70052221.

It is an arithmetic number, because the mean of its divisors is an integer number (70052221).

Almost surely, 2^140104441 is an apocalyptic number.

It is an amenable number.

140104441 is a deficient number, since it is larger than the sum of its proper divisors (1).

140104441 is an equidigital number, since it uses as much as digits as its factorization.

140104441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 140104441 is about 11836.5721811680. The cubic root of 140104441 is about 519.3784993463.

Adding to 140104441 its reverse (144401041), we get a palindrome (284505482).

The spelling of 140104441 in words is "one hundred forty million, one hundred four thousand, four hundred forty-one".