140223131136917 has 2 divisors, whose sum is σ = 140223131136918. Its totient is φ = 140223131136916.

The previous prime is 140223131136821. The next prime is 140223131136919. The reversal of 140223131136917 is 719631131322041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135354749250436 + 4868381886481 = 11634206^2 + 2206441^2 .

It is a cyclic number.

It is not a de Polignac number, because 140223131136917 - 2²⁰ = 140223130088341 is a prime.

Together with 140223131136919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140223131136919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70111565568458 + 70111565568459.

It is an arithmetic number, because the mean of its divisors is an integer number (70111565568459).

Almost surely, 2^{140223131136917} is an apocalyptic number.

It is an amenable number.

140223131136917 is a deficient number, since it is larger than the sum of its proper divisors (1).

140223131136917 is an equidigital number, since it uses as much as digits as its factorization.

140223131136917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

Adding to 140223131136917 its reverse (719631131322041), we get a palindrome (859854262458958).

The spelling of 140223131136917 in words is "one hundred forty trillion, two hundred twenty-three billion, one hundred thirty-one million, one hundred thirty-six thousand, nine hundred seventeen".