140044517 has 2 divisors, whose sum is σ = 140044518. Its totient is φ = 140044516.

The previous prime is 140044483. The next prime is 140044523. The reversal of 140044517 is 715440041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140043556 + 961 = 11834^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 140044517 - 2²⁴ = 123267301 is a prime.

It is a super-2 number, since 2×140044517² = 39224933483526578, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140044717) 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 as a sum of consecutive naturals, namely, 70022258 + 70022259.

It is an arithmetic number, because the mean of its divisors is an integer number (70022259).

Almost surely, 2^140044517 is an apocalyptic number.

It is an amenable number.

140044517 is a deficient number, since it is larger than the sum of its proper divisors (1).

140044517 is an equidigital number, since it uses as much as digits as its factorization.

140044517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 140044517 is about 11834.0406032766. The cubic root of 140044517 is about 519.3044410812.

Adding to 140044517 its reverse (715440041), we get a palindrome (855484558).

The spelling of 140044517 in words is "one hundred forty million, forty-four thousand, five hundred seventeen".