11285513 has 2 divisors, whose sum is σ = 11285514. Its totient is φ = 11285512.

The previous prime is 11285509. The next prime is 11285551. The reversal of 11285513 is 31558211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11002489 + 283024 = 3317^2 + 532^2 .

It is an emirp because it is prime and its reverse (31558211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11285513 - 2² = 11285509 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11285503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642756 + 5642757.

It is an arithmetic number, because the mean of its divisors is an integer number (5642757).

Almost surely, 2^11285513 is an apocalyptic number.

It is an amenable number.

11285513 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285513 is an equidigital number, since it uses as much as digits as its factorization.

11285513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 26.

The square root of 11285513 is about 3359.3917604233. The cubic root of 11285513 is about 224.3057646735.

The spelling of 11285513 in words is "eleven million, two hundred eighty-five thousand, five hundred thirteen".