1142163 has 24 divisors (see below), whose sum is σ = 1834560. Its totient is φ = 678960.

The previous prime is 1142161. The next prime is 1142171. The reversal of 1142163 is 3612411.

It is a happy number.

It is not a de Polignac number, because 1142163 - 2¹ = 1142161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142161) 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 23 ways as a sum of consecutive naturals, for example, 8148 + ... + 8286.

It is an arithmetic number, because the mean of its divisors is an integer number (76440).

2^1142163 is an apocalyptic number.

1142163 is a deficient number, since it is larger than the sum of its proper divisors (692397).

1142163 is a wasteful number, since it uses less digits than its factorization.

1142163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 236 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1142163 is about 1068.7202627442. The cubic root of 1142163 is about 104.5304200870.

Adding to 1142163 its reverse (3612411), we get a palindrome (4754574).

The spelling of 1142163 in words is "one million, one hundred forty-two thousand, one hundred sixty-three".