1443245445 has 20 divisors (see below), whose sum is σ = 2587151820. Its totient is φ = 769730688.

The previous prime is 1443245429. The next prime is 1443245477. The reversal of 1443245445 is 5445423441.

1443245445 is a `hidden beast` number, since 144 + 32 + 45 + 445 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 342731169 + 1100514276 = 18513^2 + 33174^2 .

It is not a de Polignac number, because 1443245445 - 2⁴ = 1443245429 is a prime.

It is a Curzon number.

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 1781380 + ... + 1782189.

It is an arithmetic number, because the mean of its divisors is an integer number (129357591).

Almost surely, 2^1443245445 is an apocalyptic number.

1443245445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1443245445 is a deficient number, since it is larger than the sum of its proper divisors (1143906375).

1443245445 is an equidigital number, since it uses as much as digits as its factorization.

1443245445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563586 (or 3563577 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 1443245445 is about 37990.0703473947. The cubic root of 1443245445 is about 1130.0909538609.

Adding to 1443245445 its reverse (5445423441), we get a palindrome (6888668886).

It can be divided in two parts, 144324 and 5445, that added together give a square (149769 = 387²).

The spelling of 1443245445 in words is "one billion, four hundred forty-three million, two hundred forty-five thousand, four hundred forty-five".