9215165 has 4 divisors (see below), whose sum is σ = 11058204. Its totient is φ = 7372128.

The previous prime is 9215159. The next prime is 9215231. The reversal of 9215165 is 5615129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5615129 = 13 ⋅431933.

It can be written as a sum of positive squares in 2 ways, for example, as 6661561 + 2553604 = 2581^2 + 1598^2 .

It is a cyclic number.

It is not a de Polignac number, because 9215165 - 2¹⁶ = 9149629 is a prime.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921512 + ... + 921521.

It is an arithmetic number, because the mean of its divisors is an integer number (2764551).

Almost surely, 2^9215165 is an apocalyptic number.

It is an amenable number.

9215165 is a deficient number, since it is larger than the sum of its proper divisors (1843039).

9215165 is a wasteful number, since it uses less digits than its factorization.

9215165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843038.

The product of its digits is 2700, while the sum is 29.

The square root of 9215165 is about 3035.6490245086. The cubic root of 9215165 is about 209.6529794037.

The spelling of 9215165 in words is "nine million, two hundred fifteen thousand, one hundred sixty-five".