11125287 has 12 divisors (see below), whose sum is σ = 16103880. Its totient is φ = 7401168.

The previous prime is 11125277. The next prime is 11125319. The reversal of 11125287 is 78252111.

It is not a de Polignac number, because 11125287 - 2⁶ = 11125223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11125287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11125277) 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 11 ways as a sum of consecutive naturals, for example, 4573 + ... + 6569.

It is an arithmetic number, because the mean of its divisors is an integer number (1341990).

Almost surely, 2^11125287 is an apocalyptic number.

11125287 is a deficient number, since it is larger than the sum of its proper divisors (4978593).

11125287 is a wasteful number, since it uses less digits than its factorization.

11125287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622 (or 2619 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 11125287 is about 3335.4590388731. The cubic root of 11125287 is about 223.2391744359.

Adding to 11125287 its reverse (78252111), we get a palindrome (89377398).

The spelling of 11125287 in words is "eleven million, one hundred twenty-five thousand, two hundred eighty-seven".