1445456495257 has 2 divisors, whose sum is σ = 1445456495258. Its totient is φ = 1445456495256.

The previous prime is 1445456495243. The next prime is 1445456495269. The reversal of 1445456495257 is 7525946545441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1441690095616 + 3766399641 = 1200704^2 + 61371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445456495257 - 2³⁵ = 1411096756889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445456495195 and 1445456495204.

It is not a weakly prime, because it can be changed into another prime (1445456495297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722728247628 + 722728247629.

It is an arithmetic number, because the mean of its divisors is an integer number (722728247629).

Almost surely, 2^{1445456495257} is an apocalyptic number.

It is an amenable number.

1445456495257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445456495257 is an equidigital number, since it uses as much as digits as its factorization.

1445456495257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960000, while the sum is 61.

The spelling of 1445456495257 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, four hundred ninety-five thousand, two hundred fifty-seven".