1143573 has 12 divisors (see below), whose sum is σ = 1620960. Its totient is φ = 716992.

The previous prime is 1143563. The next prime is 1143577. The reversal of 1143573 is 3753411.

It is not a de Polignac number, because 1143573 - 2⁹ = 1143061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (135080).

2^1143573 is an apocalyptic number.

It is an amenable number.

1143573 is a deficient number, since it is larger than the sum of its proper divisors (477387).

1143573 is a wasteful number, since it uses less digits than its factorization.

1143573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1339 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 1143573 is about 1069.3797267575. The cubic root of 1143573 is about 104.5734166598.

Adding to 1143573 its reverse (3753411), we get a palindrome (4896984).

The spelling of 1143573 in words is "one million, one hundred forty-three thousand, five hundred seventy-three".