11147889 has 16 divisors (see below), whose sum is σ = 15727680. Its totient is φ = 7004160.

The previous prime is 11147887. The next prime is 11147891. The reversal of 11147889 is 98874111.

It is an interprime number because it is at equal distance from previous prime (11147887) and next prime (11147891).

It is not a de Polignac number, because 11147889 - 2¹ = 11147887 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11147887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14269 + ... + 15029.

It is an arithmetic number, because the mean of its divisors is an integer number (982980).

Almost surely, 2^11147889 is an apocalyptic number.

11147889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11147889 is a deficient number, since it is larger than the sum of its proper divisors (4579791).

11147889 is a wasteful number, since it uses less digits than its factorization.

11147889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its digits is 16128, while the sum is 39.

The square root of 11147889 is about 3338.8454591370. The cubic root of 11147889 is about 223.3902488539.

The spelling of 11147889 in words is "eleven million, one hundred forty-seven thousand, eight hundred eighty-nine".