140244590623 has 2 divisors, whose sum is σ = 140244590624. Its totient is φ = 140244590622.

The previous prime is 140244590621. The next prime is 140244590627. The reversal of 140244590623 is 326095442041.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (326095442041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140244590623 - 2¹ = 140244590621 is a prime.

Together with 140244590621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140244590621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70122295311 + 70122295312.

It is an arithmetic number, because the mean of its divisors is an integer number (70122295312).

Almost surely, 2^140244590623 is an apocalyptic number.

140244590623 is a deficient number, since it is larger than the sum of its proper divisors (1).

140244590623 is an equidigital number, since it uses as much as digits as its factorization.

140244590623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 140244590623 in words is "one hundred forty billion, two hundred forty-four million, five hundred ninety thousand, six hundred twenty-three".