11281315 has 8 divisors (see below), whose sum is σ = 13793328. Its totient is φ = 8854560.

The previous prime is 11281313. The next prime is 11281321. The reversal of 11281315 is 51318211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11281315 - 2¹ = 11281313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11281313) 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 7 ways as a sum of consecutive naturals, for example, 21021 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (1724166).

Almost surely, 2^11281315 is an apocalyptic number.

11281315 is a deficient number, since it is larger than the sum of its proper divisors (2512013).

11281315 is an equidigital number, since it uses as much as digits as its factorization.

11281315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42629.

The product of its digits is 240, while the sum is 22.

The square root of 11281315 is about 3358.7668868202. The cubic root of 11281315 is about 224.2779487062.

Adding to 11281315 its reverse (51318211), we get a palindrome (62599526).

The spelling of 11281315 in words is "eleven million, two hundred eighty-one thousand, three hundred fifteen".