1445165387 has 2 divisors, whose sum is σ = 1445165388. Its totient is φ = 1445165386.

The previous prime is 1445165383. The next prime is 1445165429. The reversal of 1445165387 is 7835615441.

It is a weak prime.

It is an emirp because it is prime and its reverse (7835615441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445165387 - 2² = 1445165383 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445165383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722582693 + 722582694.

It is an arithmetic number, because the mean of its divisors is an integer number (722582694).

Almost surely, 2^1445165387 is an apocalyptic number.

1445165387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445165387 is an equidigital number, since it uses as much as digits as its factorization.

1445165387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 44.

The square root of 1445165387 is about 38015.3309468693. The cubic root of 1445165387 is about 1130.5918498766.

The spelling of 1445165387 in words is "one billion, four hundred forty-five million, one hundred sixty-five thousand, three hundred eighty-seven".