1222473 has 16 divisors (see below), whose sum is σ = 1944576. Its totient is φ = 667920.

The previous prime is 1222471. The next prime is 1222483. The reversal of 1222473 is 3742221.

It is not a de Polignac number, because 1222473 - 2¹ = 1222471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a Curzon number.

1222473 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1222471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (121536).

2^1222473 is an apocalyptic number.

It is an amenable number.

1222473 is a deficient number, since it is larger than the sum of its proper divisors (722103).

1222473 is a wasteful number, since it uses less digits than its factorization.

1222473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564.

The product of its digits is 672, while the sum is 21.

The square root of 1222473 is about 1105.6550094853. The cubic root of 1222473 is about 106.9251230301.

Adding to 1222473 its reverse (3742221), we get a palindrome (4964694).

The spelling of 1222473 in words is "one million, two hundred twenty-two thousand, four hundred seventy-three".