1144587423 has 12 divisors (see below), whose sum is σ = 1775278680. Its totient is φ = 654049872.

The previous prime is 1144587421. The next prime is 1144587443. The reversal of 1144587423 is 3247854411.

It is not a de Polignac number, because 1144587423 - 2¹ = 1144587421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144587421) 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 11 ways as a sum of consecutive naturals, for example, 3893008 + ... + 3893301.

It is an arithmetic number, because the mean of its divisors is an integer number (147939890).

Almost surely, 2^1144587423 is an apocalyptic number.

1144587423 is a deficient number, since it is larger than the sum of its proper divisors (630691257).

1144587423 is an equidigital number, since it uses as much as digits as its factorization.

1144587423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786326 (or 7786319 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 1144587423 is about 33831.7516986632. The cubic root of 1144587423 is about 1046.0432864279.

The spelling of 1144587423 in words is "one billion, one hundred forty-four million, five hundred eighty-seven thousand, four hundred twenty-three".