11389143 has 8 divisors (see below), whose sum is σ = 15202800. Its totient is φ = 7584128.

The previous prime is 11389097. The next prime is 11389153. The reversal of 11389143 is 34198311.

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 11389143 - 2⁹ = 11388631 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11389143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389153) 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, 2143 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (1900350).

Almost surely, 2^11389143 is an apocalyptic number.

11389143 is a deficient number, since it is larger than the sum of its proper divisors (3813657).

11389143 is a wasteful number, since it uses less digits than its factorization.

11389143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321.

The product of its digits is 2592, while the sum is 30.

The square root of 11389143 is about 3374.7804373026. The cubic root of 11389143 is about 224.9902415521.

The spelling of 11389143 in words is "eleven million, three hundred eighty-nine thousand, one hundred forty-three".