1165215 has 8 divisors (see below), whose sum is σ = 1864368. Its totient is φ = 621440.

The previous prime is 1165211. The next prime is 1165217. The reversal of 1165215 is 5125611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1165215 - 2² = 1165211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1165191 and 1165200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165211) 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 7 ways as a sum of consecutive naturals, for example, 38826 + ... + 38855.

It is an arithmetic number, because the mean of its divisors is an integer number (233046).

2^1165215 is an apocalyptic number.

1165215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1165215 is a deficient number, since it is larger than the sum of its proper divisors (699153).

1165215 is an equidigital number, since it uses as much as digits as its factorization.

1165215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77689.

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

The square root of 1165215 is about 1079.4512494782. The cubic root of 1165215 is about 105.2289787497.

The spelling of 1165215 in words is "one million, one hundred sixty-five thousand, two hundred fifteen".