11143459 has 4 divisors (see below), whose sum is σ = 11163816. Its totient is φ = 11123104.

The previous prime is 11143427. The next prime is 11143463. The reversal of 11143459 is 95434111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95434111 = 47 ⋅2030513.

It is a cyclic number.

It is not a de Polignac number, because 11143459 - 2⁵ = 11143427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143499) 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, 9334 + ... + 10459.

It is an arithmetic number, because the mean of its divisors is an integer number (2790954).

Almost surely, 2^11143459 is an apocalyptic number.

11143459 is a deficient number, since it is larger than the sum of its proper divisors (20357).

11143459 is an equidigital number, since it uses as much as digits as its factorization.

11143459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20356.

The product of its digits is 2160, while the sum is 28.

The square root of 11143459 is about 3338.1819902456. The cubic root of 11143459 is about 223.3606543146.

The spelling of 11143459 in words is "eleven million, one hundred forty-three thousand, four hundred fifty-nine".