140449456397 has 2 divisors, whose sum is σ = 140449456398. Its totient is φ = 140449456396.

The previous prime is 140449456363. The next prime is 140449456453. The reversal of 140449456397 is 793654944041.

It is an a-pointer prime, because the next prime (140449456453) can be obtained adding 140449456397 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140434564516 + 14891881 = 374746^2 + 3859^2 .

It is a cyclic number.

It is not a de Polignac number, because 140449456397 - 2¹⁴ = 140449440013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140449456997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70224728198 + 70224728199.

It is an arithmetic number, because the mean of its divisors is an integer number (70224728199).

Almost surely, 2^140449456397 is an apocalyptic number.

It is an amenable number.

140449456397 is a deficient number, since it is larger than the sum of its proper divisors (1).

140449456397 is an equidigital number, since it uses as much as digits as its factorization.

140449456397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 140449456397 in words is "one hundred forty billion, four hundred forty-nine million, four hundred fifty-six thousand, three hundred ninety-seven".