140445312349 has 2 divisors, whose sum is σ = 140445312350. Its totient is φ = 140445312348.

The previous prime is 140445312311. The next prime is 140445312353. The reversal of 140445312349 is 943213544041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113944728249 + 26500584100 = 337557^2 + 162790^2 .

It is a cyclic number.

It is not a de Polignac number, because 140445312349 - 2⁹ = 140445311837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140445319349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222656174 + 70222656175.

It is an arithmetic number, because the mean of its divisors is an integer number (70222656175).

Almost surely, 2^140445312349 is an apocalyptic number.

It is an amenable number.

140445312349 is a deficient number, since it is larger than the sum of its proper divisors (1).

140445312349 is an equidigital number, since it uses as much as digits as its factorization.

140445312349 is an evil number, because the sum of its binary digits is even.

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

The spelling of 140445312349 in words is "one hundred forty billion, four hundred forty-five million, three hundred twelve thousand, three hundred forty-nine".