11142143 has 8 divisors (see below), whose sum is σ = 11941728. Its totient is φ = 10368864.

The previous prime is 11142107. The next prime is 11142181. The reversal of 11142143 is 34124111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11142143 - 2¹⁶ = 11076607 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5696 + ... + 7397.

It is an arithmetic number, because the mean of its divisors is an integer number (1492716).

Almost surely, 2^11142143 is an apocalyptic number.

11142143 is a deficient number, since it is larger than the sum of its proper divisors (799585).

11142143 is a wasteful number, since it uses less digits than its factorization.

11142143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13153.

The product of its digits is 96, while the sum is 17.

The square root of 11142143 is about 3337.9848711461. The cubic root of 11142143 is about 223.3518612880.

Adding to 11142143 its reverse (34124111), we get a palindrome (45266254).

The spelling of 11142143 in words is "eleven million, one hundred forty-two thousand, one hundred forty-three".