1143575 has 12 divisors (see below), whose sum is σ = 1432200. Its totient is φ = 905760.

The previous prime is 1143563. The next prime is 1143577. The reversal of 1143575 is 5753411.

It is not a de Polignac number, because 1143575 - 2²⁰ = 94999 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3572 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (119350).

2^1143575 is an apocalyptic number.

1143575 is a deficient number, since it is larger than the sum of its proper divisors (288625).

1143575 is a wasteful number, since it uses less digits than its factorization.

1143575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 1143575 is about 1069.3806618786. The cubic root of 1143575 is about 104.5734776227.

Adding to 1143575 its reverse (5753411), we get a palindrome (6896986).

The spelling of 1143575 in words is "one million, one hundred forty-three thousand, five hundred seventy-five".