1144521445 has 8 divisors (see below), whose sum is σ = 1389973536. Its totient is φ = 904585296.

The previous prime is 1144521431. The next prime is 1144521479. The reversal of 1144521445 is 5441254411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144521445 - 2¹⁵ = 1144488677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378527 + ... + 1379356.

It is an arithmetic number, because the mean of its divisors is an integer number (173746692).

Almost surely, 2^1144521445 is an apocalyptic number.

It is an amenable number.

1144521445 is a deficient number, since it is larger than the sum of its proper divisors (245452091).

1144521445 is an equidigital number, since it uses as much as digits as its factorization.

1144521445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757971.

The product of its digits is 12800, while the sum is 31.

The square root of 1144521445 is about 33830.7765946926. The cubic root of 1144521445 is about 1046.0231868507.

Adding to 1144521445 its reverse (5441254411), we get a palindrome (6585775856).

The spelling of 1144521445 in words is "one billion, one hundred forty-four million, five hundred twenty-one thousand, four hundred forty-five".