11152215 has 16 divisors (see below), whose sum is σ = 19826400. Its totient is φ = 5947776.

The previous prime is 11152213. The next prime is 11152223. The reversal of 11152215 is 51225111.

It is not a de Polignac number, because 11152215 - 2¹ = 11152213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11152213) 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 15 ways as a sum of consecutive naturals, for example, 41170 + ... + 41439.

It is an arithmetic number, because the mean of its divisors is an integer number (1239150).

Almost surely, 2^11152215 is an apocalyptic number.

11152215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11152215 is a deficient number, since it is larger than the sum of its proper divisors (8674185).

11152215 is an equidigital number, since it uses as much as digits as its factorization.

11152215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82623 (or 82617 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 11152215 is about 3339.4932250268. The cubic root of 11152215 is about 223.4191410576.

Adding to 11152215 its reverse (51225111), we get a palindrome (62377326).

It can be divided in two parts, 111 and 52215, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 11152215 in words is "eleven million, one hundred fifty-two thousand, two hundred fifteen".