1445317 has 2 divisors, whose sum is σ = 1445318. Its totient is φ = 1445316.

The previous prime is 1445303. The next prime is 1445329. The reversal of 1445317 is 7135441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1442401 + 2916 = 1201^2 + 54^2 .

It is an emirp because it is prime and its reverse (7135441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445317 - 2¹⁹ = 921029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445291 and 1445300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722658 + 722659.

It is an arithmetic number, because the mean of its divisors is an integer number (722659).

2^1445317 is an apocalyptic number.

It is an amenable number.

1445317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445317 is an equidigital number, since it uses as much as digits as its factorization.

1445317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 1445317 is about 1202.2133754039. The cubic root of 1445317 is about 113.0631385473.

The spelling of 1445317 in words is "one million, four hundred forty-five thousand, three hundred seventeen".