4011143 has 4 divisors (see below), whose sum is σ = 4020720. Its totient is φ = 4001568.

The previous prime is 4011127. The next prime is 4011157. The reversal of 4011143 is 3411104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4011143 - 2⁴ = 4011127 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 (4011103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4130 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1005180).

Almost surely, 2^4011143 is an apocalyptic number.

4011143 is a deficient number, since it is larger than the sum of its proper divisors (9577).

4011143 is an equidigital number, since it uses as much as digits as its factorization.

4011143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 4011143 is about 2002.7838125969. The cubic root of 4011143 is about 158.8873719479.

Adding to 4011143 its reverse (3411104), we get a palindrome (7422247).

The spelling of 4011143 in words is "four million, eleven thousand, one hundred forty-three".