1143045 has 16 divisors (see below), whose sum is σ = 2032320. Its totient is φ = 609552.

The previous prime is 1143019. The next prime is 1143047. The reversal of 1143045 is 5403411.

It is a happy number.

It is not a de Polignac number, because 1143045 - 2⁵ = 1143013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4099 + ... + 4368.

It is an arithmetic number, because the mean of its divisors is an integer number (127020).

2^1143045 is an apocalyptic number.

1143045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143045 is a deficient number, since it is larger than the sum of its proper divisors (889275).

1143045 is an equidigital number, since it uses as much as digits as its factorization.

1143045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8481 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1143045 is about 1069.1328261727. The cubic root of 1143045 is about 104.5573199571.

Adding to 1143045 its reverse (5403411), we get a palindrome (6546456).

The spelling of 1143045 in words is "one million, one hundred forty-three thousand, forty-five".