1445245315 has 4 divisors (see below), whose sum is σ = 1734294384. Its totient is φ = 1156196248.

The previous prime is 1445245309. The next prime is 1445245343. The reversal of 1445245315 is 5135425441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5135425441 = 23 ⋅223279367.

It is a cyclic number.

It is not a de Polignac number, because 1445245315 - 2⁹ = 1445244803 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 144524527 + ... + 144524536.

It is an arithmetic number, because the mean of its divisors is an integer number (433573596).

Almost surely, 2^1445245315 is an apocalyptic number.

1445245315 is a deficient number, since it is larger than the sum of its proper divisors (289049069).

1445245315 is an equidigital number, since it uses as much as digits as its factorization.

1445245315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289049068.

The product of its digits is 48000, while the sum is 34.

The square root of 1445245315 is about 38016.3821924180. The cubic root of 1445245315 is about 1130.6126927689.

The spelling of 1445245315 in words is "one billion, four hundred forty-five million, two hundred forty-five thousand, three hundred fifteen".