1144663423 has 4 divisors (see below), whose sum is σ = 1155361320. Its totient is φ = 1133965528.

The previous prime is 1144663381. The next prime is 1144663439. The reversal of 1144663423 is 3243664411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144663423 - 2¹³ = 1144655231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144663463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348788 + ... + 5349001.

It is an arithmetic number, because the mean of its divisors is an integer number (288840330).

Almost surely, 2^1144663423 is an apocalyptic number.

1144663423 is a deficient number, since it is larger than the sum of its proper divisors (10697897).

1144663423 is a wasteful number, since it uses less digits than its factorization.

1144663423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697896.

The product of its digits is 41472, while the sum is 34.

The square root of 1144663423 is about 33832.8748852355. The cubic root of 1144663423 is about 1046.0664381560.

The spelling of 1144663423 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, four hundred twenty-three".