1144143 has 48 divisors (see below), whose sum is σ = 2236416. Its totient is φ = 544320.

The previous prime is 1144141. The next prime is 1144147. The reversal of 1144143 is 3414411.

It is not a de Polignac number, because 1144143 - 2¹ = 1144141 is a prime.

1144143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8946 + ... + 9072.

It is an arithmetic number, because the mean of its divisors is an integer number (46592).

2^1144143 is an apocalyptic number.

1144143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1144143 is a deficient number, since it is larger than the sum of its proper divisors (1092273).

1144143 is a wasteful number, since it uses less digits than its factorization.

1144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 161 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1144143 is about 1069.6462031906. The cubic root of 1144143 is about 104.5907882215.

Adding to 1144143 its reverse (3414411), we get a palindrome (4558554).

The spelling of 1144143 in words is "one million, one hundred forty-four thousand, one hundred forty-three".