1164143 has 12 divisors (see below), whose sum is σ = 1300032. Its totient is φ = 1037760.

The previous prime is 1164101. The next prime is 1164173. The reversal of 1164143 is 3414611.

It is not a de Polignac number, because 1164143 - 2¹⁰ = 1163119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164173) 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, 24746 + ... + 24792.

It is an arithmetic number, because the mean of its divisors is an integer number (108336).

2^1164143 is an apocalyptic number.

1164143 is a deficient number, since it is larger than the sum of its proper divisors (135889).

1164143 is an equidigital number, since it uses as much as digits as its factorization.

1164143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 95 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1164143 is about 1078.9545866254. The cubic root of 1164143 is about 105.1966985620.

Adding to 1164143 its reverse (3414611), we get a palindrome (4578754).

The spelling of 1164143 in words is "one million, one hundred sixty-four thousand, one hundred forty-three".