1445251349 has 2 divisors, whose sum is σ = 1445251350. Its totient is φ = 1445251348.

The previous prime is 1445251333. The next prime is 1445251369. The reversal of 1445251349 is 9431525441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335902500 + 109348849 = 36550^2 + 10457^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445251349 - 2⁴ = 1445251333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445251309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722625674 + 722625675.

It is an arithmetic number, because the mean of its divisors is an integer number (722625675).

Almost surely, 2^1445251349 is an apocalyptic number.

It is an amenable number.

1445251349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445251349 is an equidigital number, since it uses as much as digits as its factorization.

1445251349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The square root of 1445251349 is about 38016.4615528589. The cubic root of 1445251349 is about 1130.6142662290.

The spelling of 1445251349 in words is "one billion, four hundred forty-five million, two hundred fifty-one thousand, three hundred forty-nine".