1005215 has 8 divisors (see below), whose sum is σ = 1258848. Its totient is φ = 769120.

The previous prime is 1005209. The next prime is 1005217. The reversal of 1005215 is 5125001.

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

It is a de Polignac number, because none of the positive numbers 2^k-1005215 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4256 + ... + 4485.

It is an arithmetic number, because the mean of its divisors is an integer number (157356).

2^1005215 is an apocalyptic number.

1005215 is a deficient number, since it is larger than the sum of its proper divisors (253633).

1005215 is an equidigital number, since it uses as much as digits as its factorization.

1005215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8769.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1005215 is about 1002.6041093074. The cubic root of 1005215 is about 100.1735320255.

The spelling of 1005215 in words is "one million, five thousand, two hundred fifteen".