1217065 has 8 divisors (see below), whose sum is σ = 1491840. Its totient is φ = 952752.

The previous prime is 1217063. The next prime is 1217071. The reversal of 1217065 is 5607121.

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

It is a cyclic number.

It is not a de Polignac number, because 1217065 - 2¹ = 1217063 is a prime.

1217065 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1217063) 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, 2355 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (186480).

2^1217065 is an apocalyptic number.

It is an amenable number.

1217065 is a deficient number, since it is larger than the sum of its proper divisors (274775).

1217065 is an equidigital number, since it uses as much as digits as its factorization.

1217065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1217065 is about 1103.2066896099. The cubic root of 1217065 is about 106.7672174676.

The spelling of 1217065 in words is "one million, two hundred seventeen thousand, sixty-five".