1144727144 has 16 divisors (see below), whose sum is σ = 2341487520. Its totient is φ = 520330480.

The previous prime is 1144727141. The next prime is 1144727183. The reversal of 1144727144 is 4417274411.

It is not an unprimeable number, because it can be changed into a prime (1144727141) 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 3 ways as a sum of consecutive naturals, for example, 6504044 + ... + 6504219.

It is an arithmetic number, because the mean of its divisors is an integer number (146342970).

Almost surely, 2^1144727144 is an apocalyptic number.

It is an amenable number.

1144727144 is an abundant number, since it is smaller than the sum of its proper divisors (1196760376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144727144 is a wasteful number, since it uses less digits than its factorization.

1144727144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13008280 (or 13008276 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 1144727144 is about 33833.8165745457. The cubic root of 1144727144 is about 1046.0858485671.

The spelling of 1144727144 in words is "one billion, one hundred forty-four million, seven hundred twenty-seven thousand, one hundred forty-four".