1445420801497 has 2 divisors, whose sum is σ = 1445420801498. Its totient is φ = 1445420801496.

The previous prime is 1445420801491. The next prime is 1445420801501. The reversal of 1445420801497 is 7941080245441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1206616568521 + 238804232976 = 1098461^2 + 488676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445420801497 - 2¹⁹ = 1445420277209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1445420801497.

It is not a weakly prime, because it can be changed into another prime (1445420801491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722710400748 + 722710400749.

It is an arithmetic number, because the mean of its divisors is an integer number (722710400749).

Almost surely, 2^{1445420801497} is an apocalyptic number.

It is an amenable number.

1445420801497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445420801497 is an equidigital number, since it uses as much as digits as its factorization.

1445420801497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 1445420801497 in words is "one trillion, four hundred forty-five billion, four hundred twenty million, eight hundred one thousand, four hundred ninety-seven".