1445771071 has 2 divisors, whose sum is σ = 1445771072. Its totient is φ = 1445771070.

The previous prime is 1445771039. The next prime is 1445771077. The reversal of 1445771071 is 1701775441.

It is a strong prime.

It is an emirp because it is prime and its reverse (1701775441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445771071 - 2⁵ = 1445771039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1445771071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445771077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722885535 + 722885536.

It is an arithmetic number, because the mean of its divisors is an integer number (722885536).

Almost surely, 2^1445771071 is an apocalyptic number.

1445771071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445771071 is an equidigital number, since it uses as much as digits as its factorization.

1445771071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 1445771071 is about 38023.2964246921. The cubic root of 1445771071 is about 1130.7497754575.

The spelling of 1445771071 in words is "one billion, four hundred forty-five million, seven hundred seventy-one thousand, seventy-one".