1143712 has 24 divisors (see below), whose sum is σ = 2280096. Its totient is φ = 564672.

The previous prime is 1143697. The next prime is 1143719. The reversal of 1143712 is 2173411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143712.

It is not an unprimeable number, because it can be changed into a prime (1143719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3123 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (95004).

2^1143712 is an apocalyptic number.

It is an amenable number.

1143712 is a deficient number, since it is larger than the sum of its proper divisors (1136384).

1143712 is a wasteful number, since it uses less digits than its factorization.

1143712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 452 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 1143712 is about 1069.4447157287. Note that the first 3 decimals coincide. The cubic root of 1143712 is about 104.5776534148.

Multiplying 1143712 by its sum of digits (19), we get a triangular number (21730528 = T₆₅₉₂).

It can be divided in two parts, 11437 and 12, that added together give a square (11449 = 107²).

The spelling of 1143712 in words is "one million, one hundred forty-three thousand, seven hundred twelve".