1144743255 has 24 divisors (see below), whose sum is σ = 2088655920. Its totient is φ = 578396160.

The previous prime is 1144743253. The next prime is 1144743287. The reversal of 1144743255 is 5523474411.

It is not a de Polignac number, because 1144743255 - 2¹ = 1144743253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144743253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 668586 + ... + 670295.

It is an arithmetic number, because the mean of its divisors is an integer number (87027330).

Almost surely, 2^1144743255 is an apocalyptic number.

1144743255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144743255 is a deficient number, since it is larger than the sum of its proper divisors (943912665).

1144743255 is a wasteful number, since it uses less digits than its factorization.

1144743255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338911 (or 1338908 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 1144743255 is about 33834.0546639033. The cubic root of 1144743255 is about 1046.0907561150.

The spelling of 1144743255 in words is "one billion, one hundred forty-four million, seven hundred forty-three thousand, two hundred fifty-five".