11065215 has 32 divisors (see below), whose sum is σ = 21427200. Its totient is φ = 4760064.

The previous prime is 11065213. The next prime is 11065247. The reversal of 11065215 is 51256011.

It is not a de Polignac number, because 11065215 - 2¹ = 11065213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11065191 and 11065200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11065213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1315 + ... + 4884.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

Almost surely, 2^11065215 is an apocalyptic number.

11065215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11065215 is a deficient number, since it is larger than the sum of its proper divisors (10361985).

11065215 is a wasteful number, since it uses less digits than its factorization.

11065215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 11065215 is about 3326.4417926668. The cubic root of 11065215 is about 222.8366489913.

The spelling of 11065215 in words is "eleven million, sixty-five thousand, two hundred fifteen".