11143671 has 32 divisors (see below), whose sum is σ = 19507200. Its totient is φ = 5482080.

The previous prime is 11143667. The next prime is 11143679. The reversal of 11143671 is 17634111.

11143671 = T₃₅₆ + T₃₅₇ + ... + T₄₈₁.

It is not a de Polignac number, because 11143671 - 2² = 11143667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3120 + ... + 5658.

It is an arithmetic number, because the mean of its divisors is an integer number (609600).

Almost surely, 2^11143671 is an apocalyptic number.

11143671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11143671 is a deficient number, since it is larger than the sum of its proper divisors (8363529).

11143671 is a wasteful number, since it uses less digits than its factorization.

11143671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its digits is 504, while the sum is 24.

The square root of 11143671 is about 3338.2137439056. The cubic root of 11143671 is about 223.3620707557.

Adding to 11143671 its reverse (17634111), we get a palindrome (28777782).

The spelling of 11143671 in words is "eleven million, one hundred forty-three thousand, six hundred seventy-one".