1220675 has 12 divisors (see below), whose sum is σ = 1528176. Its totient is φ = 967200.

The previous prime is 1220669. The next prime is 1220689. The reversal of 1220675 is 5760221.

It is not a de Polignac number, because 1220675 - 2¹⁰ = 1219651 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

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 1220675.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3770 + ... + 4080.

It is an arithmetic number, because the mean of its divisors is an integer number (127348).

2^1220675 is an apocalyptic number.

1220675 is a deficient number, since it is larger than the sum of its proper divisors (307501).

1220675 is a wasteful number, since it uses less digits than its factorization.

1220675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1220675 is about 1104.8416176086. The cubic root of 1220675 is about 106.8726758725.

Adding to 1220675 its reverse (5760221), we get a palindrome (6980896).

The spelling of 1220675 in words is "one million, two hundred twenty thousand, six hundred seventy-five".