11215375 has 32 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 8298400.

The previous prime is 11215357. The next prime is 11215381. The reversal of 11215375 is 57351211.

11215375 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11215375 - 2⁷ = 11215247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 135084 + ... + 135166.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 2^11215375 is an apocalyptic number.

11215375 is a deficient number, since it is larger than the sum of its proper divisors (3880433).

11215375 is an equidigital number, since it uses as much as digits as its factorization.

11215375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 158 counting only the distinct ones).

The product of its digits is 1050, while the sum is 25.

The square root of 11215375 is about 3348.9363983211. The cubic root of 11215375 is about 223.8401216188.

Adding to 11215375 its reverse (57351211), we get a palindrome (68566586).

The spelling of 11215375 in words is "eleven million, two hundred fifteen thousand, three hundred seventy-five".