1220283 has 12 divisors (see below), whose sum is σ = 1806168. Its totient is φ = 793440.

The previous prime is 1220257. The next prime is 1220309. The reversal of 1220283 is 3820221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1220257) and next prime (1220309).

It is not a de Polignac number, because 1220283 - 2⁵ = 1220251 is a prime.

1220283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1220203) 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 11 ways as a sum of consecutive naturals, for example, 1285 + ... + 2022.

It is an arithmetic number, because the mean of its divisors is an integer number (150514).

2^1220283 is an apocalyptic number.

1220283 is a deficient number, since it is larger than the sum of its proper divisors (585885).

1220283 is a wasteful number, since it uses less digits than its factorization.

1220283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354 (or 3351 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1220283 is about 1104.6642023710. The cubic root of 1220283 is about 106.8612345049.

The spelling of 1220283 in words is "one million, two hundred twenty thousand, two hundred eighty-three".