1220575 has 6 divisors (see below), whose sum is σ = 1513544. Its totient is φ = 976440.

The previous prime is 1220507. The next prime is 1220591. The reversal of 1220575 is 5750221.

It is not a de Polignac number, because 1220575 - 2¹⁷ = 1089503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24387 + ... + 24436.

2^1220575 is an apocalyptic number.

1220575 is a deficient number, since it is larger than the sum of its proper divisors (292969).

1220575 is an equidigital number, since it uses as much as digits as its factorization.

1220575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48833 (or 48828 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 1220575 is about 1104.7963613264. The cubic root of 1220575 is about 106.8697573891.

Adding to 1220575 its reverse (5750221), we get a palindrome (6970796).

The spelling of 1220575 in words is "one million, two hundred twenty thousand, five hundred seventy-five".