1144253445 has 8 divisors (see below), whose sum is σ = 1830805536. Its totient is φ = 610268496.

The previous prime is 1144253443. The next prime is 1144253489. The reversal of 1144253445 is 5443524411.

It is a happy number.

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

It is not a de Polignac number, because 1144253445 - 2¹ = 1144253443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144253441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38141767 + ... + 38141796.

It is an arithmetic number, because the mean of its divisors is an integer number (228850692).

Almost surely, 2^1144253445 is an apocalyptic number.

1144253445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144253445 is a deficient number, since it is larger than the sum of its proper divisors (686552091).

1144253445 is an equidigital number, since it uses as much as digits as its factorization.

1144253445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76283571.

The product of its digits is 38400, while the sum is 33.

The square root of 1144253445 is about 33826.8154723438. The cubic root of 1144253445 is about 1045.9415352285.

Adding to 1144253445 its reverse (5443524411), we get a palindrome (6587777856).

The spelling of 1144253445 in words is "one billion, one hundred forty-four million, two hundred fifty-three thousand, four hundred forty-five".