11247489 has 48 divisors (see below), whose sum is σ = 19341504. Its totient is φ = 6220800.

The previous prime is 11247473. The next prime is 11247493. The reversal of 11247489 is 98474211.

11247489 = T₂₈₇ + T₂₈₈ + ... + T₄₄₉.

11247489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11247489 - 2⁴ = 11247473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11247409) 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 47 ways as a sum of consecutive naturals, for example, 68922 + ... + 69084.

It is an arithmetic number, because the mean of its divisors is an integer number (402948).

Almost surely, 2^11247489 is an apocalyptic number.

11247489 is the 1793-rd nonagonal number.

It is an amenable number.

11247489 is a deficient number, since it is larger than the sum of its proper divisors (8094015).

11247489 is a wasteful number, since it uses less digits than its factorization.

11247489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 11247489 is about 3353.7276275810. The cubic root of 11247489 is about 224.0535652617.

The spelling of 11247489 in words is "eleven million, two hundred forty-seven thousand, four hundred eighty-nine".