11251489 has 2 divisors, whose sum is σ = 11251490. Its totient is φ = 11251488.

The previous prime is 11251453. The next prime is 11251517. The reversal of 11251489 is 98415211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 4579600 = 2583^2 + 2140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11251489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11251489.

It is not a weakly prime, because it can be changed into another prime (11251789) 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 as a sum of consecutive naturals, namely, 5625744 + 5625745.

It is an arithmetic number, because the mean of its divisors is an integer number (5625745).

Almost surely, 2^11251489 is an apocalyptic number.

It is an amenable number.

11251489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11251489 is an equidigital number, since it uses as much as digits as its factorization.

11251489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 31.

The square root of 11251489 is about 3354.3239259201. The cubic root of 11251489 is about 224.0801225387.

The spelling of 11251489 in words is "eleven million, two hundred fifty-one thousand, four hundred eighty-nine".