1144451345 has 4 divisors (see below), whose sum is σ = 1373341620. Its totient is φ = 915561072.

The previous prime is 1144451323. The next prime is 1144451351. The reversal of 1144451345 is 5431544411.

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 698439184 + 446012161 = 26428^2 + 21119^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144451345 - 2⁶ = 1144451281 is a prime.

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, 114445130 + ... + 114445139.

It is an arithmetic number, because the mean of its divisors is an integer number (343335405).

Almost surely, 2^1144451345 is an apocalyptic number.

It is an amenable number.

1144451345 is a deficient number, since it is larger than the sum of its proper divisors (228890275).

1144451345 is an equidigital number, since it uses as much as digits as its factorization.

1144451345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228890274.

The product of its digits is 19200, while the sum is 32.

The square root of 1144451345 is about 33829.7405399450. The cubic root of 1144451345 is about 1046.0018306985.

Adding to 1144451345 its reverse (5431544411), we get a palindrome (6575995756).

The spelling of 1144451345 in words is "one billion, one hundred forty-four million, four hundred fifty-one thousand, three hundred forty-five".