1143375 has 16 divisors (see below), whose sum is σ = 1903200. Its totient is φ = 609600.

The previous prime is 1143371. The next prime is 1143391. The reversal of 1143375 is 5733411.

It is not a de Polignac number, because 1143375 - 2² = 1143371 is a prime.

It is a super-3 number, since 3×1143375³ = 4484224333142578125, which contains 333 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

1143375 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143371) 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 15 ways as a sum of consecutive naturals, for example, 1150 + ... + 1899.

It is an arithmetic number, because the mean of its divisors is an integer number (118950).

2^1143375 is an apocalyptic number.

1143375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143375 is a deficient number, since it is larger than the sum of its proper divisors (759825).

1143375 is an equidigital number, since it uses as much as digits as its factorization.

1143375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067 (or 3057 counting only the distinct ones).

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

The square root of 1143375 is about 1069.2871457191. The cubic root of 1143375 is about 104.5673809770.

Adding to 1143375 its reverse (5733411), we get a palindrome (6876786).

The spelling of 1143375 in words is "one million, one hundred forty-three thousand, three hundred seventy-five".