140400381613 has 2 divisors, whose sum is σ = 140400381614. Its totient is φ = 140400381612.

The previous prime is 140400381599. The next prime is 140400381691. The reversal of 140400381613 is 316183004041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103350676324 + 37049705289 = 321482^2 + 192483^2 .

It is a cyclic number.

It is not a de Polignac number, because 140400381613 - 2⁹ = 140400381101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140400381313) 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, 70200190806 + 70200190807.

It is an arithmetic number, because the mean of its divisors is an integer number (70200190807).

Almost surely, 2^140400381613 is an apocalyptic number.

It is an amenable number.

140400381613 is a deficient number, since it is larger than the sum of its proper divisors (1).

140400381613 is an equidigital number, since it uses as much as digits as its factorization.

140400381613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 140400381613 its reverse (316183004041), we get a palindrome (456583385654).

The spelling of 140400381613 in words is "one hundred forty billion, four hundred million, three hundred eighty-one thousand, six hundred thirteen".