140055400349 has 2 divisors, whose sum is σ = 140055400350. Its totient is φ = 140055400348.

The previous prime is 140055400339. The next prime is 140055400357. The reversal of 140055400349 is 943004550041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72983724025 + 67071676324 = 270155^2 + 258982^2 .

It is an emirp because it is prime and its reverse (943004550041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140055400349 - 2¹⁶ = 140055334813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140055400339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70027700174 + 70027700175.

It is an arithmetic number, because the mean of its divisors is an integer number (70027700175).

Almost surely, 2^140055400349 is an apocalyptic number.

It is an amenable number.

140055400349 is a deficient number, since it is larger than the sum of its proper divisors (1).

140055400349 is an equidigital number, since it uses as much as digits as its factorization.

140055400349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 140055400349 in words is "one hundred forty billion, fifty-five million, four hundred thousand, three hundred forty-nine".