1143023 has 6 divisors (see below), whose sum is σ = 1329696. Its totient is φ = 979692.

The previous prime is 1143019. The next prime is 1143047. The reversal of 1143023 is 3203411.

It is not a de Polignac number, because 1143023 - 2² = 1143019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142989 and 1143007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11615 + ... + 11712.

It is an arithmetic number, because the mean of its divisors is an integer number (221616).

2^1143023 is an apocalyptic number.

1143023 is a deficient number, since it is larger than the sum of its proper divisors (186673).

1143023 is an equidigital number, since it uses as much as digits as its factorization.

1143023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23341 (or 23334 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1143023 is about 1069.1225374109. The cubic root of 1143023 is about 104.5566491535.

Adding to 1143023 its reverse (3203411), we get a palindrome (4346434).

It can be divided in two parts, 11 and 43023, that added together give a palindrome (43034).

The spelling of 1143023 in words is "one million, one hundred forty-three thousand, twenty-three".