13111489 has 2 divisors, whose sum is σ = 13111490. Its totient is φ = 13111488.

The previous prime is 13111477. The next prime is 13111493. The reversal of 13111489 is 98411131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13068225 + 43264 = 3615^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 13111489 - 2¹¹ = 13109441 is a prime.

It is a super-2 number, since 2×13111489² = 343822287594242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13111409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555744 + 6555745.

It is an arithmetic number, because the mean of its divisors is an integer number (6555745).

Almost surely, 2^13111489 is an apocalyptic number.

It is an amenable number.

13111489 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111489 is an equidigital number, since it uses as much as digits as its factorization.

13111489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 28.

The square root of 13111489 is about 3620.9790112620. The cubic root of 13111489 is about 235.8037305743.

The spelling of 13111489 in words is "thirteen million, one hundred eleven thousand, four hundred eighty-nine".