11272815 has 24 divisors (see below), whose sum is σ = 19619808. Its totient is φ = 5987520.

The previous prime is 11272813. The next prime is 11272841. The reversal of 11272815 is 51827211.

It is not a de Polignac number, because 11272815 - 2¹ = 11272813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272813) 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 23 ways as a sum of consecutive naturals, for example, 17550 + ... + 18180.

It is an arithmetic number, because the mean of its divisors is an integer number (817492).

Almost surely, 2^11272815 is an apocalyptic number.

11272815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11272815 is a deficient number, since it is larger than the sum of its proper divisors (8346993).

11272815 is a wasteful number, since it uses less digits than its factorization.

11272815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1036 counting only the distinct ones).

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

The square root of 11272815 is about 3357.5013030526. The cubic root of 11272815 is about 224.2216065288.

It can be divided in two parts, 112 and 72815, that added together give a palindrome (72927).

The spelling of 11272815 in words is "eleven million, two hundred seventy-two thousand, eight hundred fifteen".