140455250489 has 2 divisors, whose sum is σ = 140455250490. Its totient is φ = 140455250488.

The previous prime is 140455250473. The next prime is 140455250531. The reversal of 140455250489 is 984052554041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114761725225 + 25693525264 = 338765^2 + 160292^2 .

It is a cyclic number.

It is not a de Polignac number, because 140455250489 - 2⁴ = 140455250473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140455250449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70227625244 + 70227625245.

It is an arithmetic number, because the mean of its divisors is an integer number (70227625245).

Almost surely, 2^140455250489 is an apocalyptic number.

It is an amenable number.

140455250489 is a deficient number, since it is larger than the sum of its proper divisors (1).

140455250489 is an equidigital number, since it uses as much as digits as its factorization.

140455250489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 140455250489 in words is "one hundred forty billion, four hundred fifty-five million, two hundred fifty thousand, four hundred eighty-nine".