1144064243 has 16 divisors (see below), whose sum is σ = 1315699200. Its totient is φ = 974500800.

The previous prime is 1144064231. The next prime is 1144064267. The reversal of 1144064243 is 3424604411.

It is not a de Polignac number, because 1144064243 - 2⁶ = 1144064179 is a prime.

It is a super-2 number, since 2×1144064243² = 2617765984222326098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144064293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177748 + ... + 1178718.

It is an arithmetic number, because the mean of its divisors is an integer number (82231200).

Almost surely, 2^1144064243 is an apocalyptic number.

1144064243 is a deficient number, since it is larger than the sum of its proper divisors (171634957).

1144064243 is an equidigital number, since it uses as much as digits as its factorization.

1144064243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1144064243 is about 33824.0187292995. The cubic root of 1144064243 is about 1045.8838833334.

Adding to 1144064243 its reverse (3424604411), we get a palindrome (4568668654).

The spelling of 1144064243 in words is "one billion, one hundred forty-four million, sixty-four thousand, two hundred forty-three".