11124889 has 2 divisors, whose sum is σ = 11124890. Its totient is φ = 11124888.

The previous prime is 11124887. The next prime is 11124929. The reversal of 11124889 is 98842111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9455625 + 1669264 = 3075^2 + 1292^2 .

It is an emirp because it is prime and its reverse (98842111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11124889 - 2¹ = 11124887 is a prime.

Together with 11124887, it forms a pair of twin primes.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11124887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5562444 + 5562445.

It is an arithmetic number, because the mean of its divisors is an integer number (5562445).

Almost surely, 2^11124889 is an apocalyptic number.

It is an amenable number.

11124889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11124889 is an equidigital number, since it uses as much as digits as its factorization.

11124889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 34.

The square root of 11124889 is about 3335.3993763866. The cubic root of 11124889 is about 223.2365123248.

The spelling of 11124889 in words is "eleven million, one hundred twenty-four thousand, eight hundred eighty-nine".