1445303113 has 4 divisors (see below), whose sum is σ = 1445648148. Its totient is φ = 1444958080.

The previous prime is 1445303099. The next prime is 1445303149. The reversal of 1445303113 is 3113035441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 688117824 + 757185289 = 26232^2 + 27517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445303113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445303413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166156 + ... + 174637.

It is an arithmetic number, because the mean of its divisors is an integer number (361412037).

Almost surely, 2^1445303113 is an apocalyptic number.

It is an amenable number.

1445303113 is a deficient number, since it is larger than the sum of its proper divisors (345035).

1445303113 is an equidigital number, since it uses as much as digits as its factorization.

1445303113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345034.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1445303113 is about 38017.1423570999. The cubic root of 1445303113 is about 1130.6277643235.

Adding to 1445303113 its reverse (3113035441), we get a palindrome (4558338554).

The spelling of 1445303113 in words is "one billion, four hundred forty-five million, three hundred three thousand, one hundred thirteen".