1445083317 has 24 divisors (see below), whose sum is σ = 2212389504. Its totient is φ = 905791104.

The previous prime is 1445083313. The next prime is 1445083357. The reversal of 1445083317 is 7133805441.

It is a happy number.

1445083317 is a `hidden beast` number, since 144 + 508 + 3 + 3 + 1 + 7 = 666.

It is not a de Polignac number, because 1445083317 - 2² = 1445083313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445083313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164478 + ... + 173040.

It is an arithmetic number, because the mean of its divisors is an integer number (92182896).

Almost surely, 2^1445083317 is an apocalyptic number.

1445083317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1445083317 is a deficient number, since it is larger than the sum of its proper divisors (767306187).

1445083317 is a wasteful number, since it uses less digits than its factorization.

1445083317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9689 (or 9686 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1445083317 is about 38014.2514986156. The cubic root of 1445083317 is about 1130.5704476135.

Adding to 1445083317 its reverse (7133805441), we get a palindrome (8578888758).

The spelling of 1445083317 in words is "one billion, four hundred forty-five million, eighty-three thousand, three hundred seventeen".