11742143 has 8 divisors (see below), whose sum is σ = 13452288. Its totient is φ = 10040184.

The previous prime is 11742109. The next prime is 11742173. The reversal of 11742143 is 34124711.

It is a happy number.

11742143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11742143 - 2⁶ = 11742079 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 (11742173) 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, 1430 + ... + 5052.

It is an arithmetic number, because the mean of its divisors is an integer number (1681536).

Almost surely, 2^11742143 is an apocalyptic number.

11742143 is a deficient number, since it is larger than the sum of its proper divisors (1710145).

11742143 is an equidigital number, since it uses as much as digits as its factorization.

11742143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093.

The product of its digits is 672, while the sum is 23.

The square root of 11742143 is about 3426.6810473109. The cubic root of 11742143 is about 227.2911128544.

Adding to 11742143 its reverse (34124711), we get a palindrome (45866854).

The spelling of 11742143 in words is "eleven million, seven hundred forty-two thousand, one hundred forty-three".