1321204 has 12 divisors (see below), whose sum is σ = 2320164. Its totient is φ = 658304.

The previous prime is 1321193. The next prime is 1321213. The reversal of 1321204 is 4021231.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 898704 = 650^2 + 948^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1932 + ... + 2524.

It is an arithmetic number, because the mean of its divisors is an integer number (193347).

2^1321204 is an apocalyptic number.

It is an amenable number.

1321204 is a deficient number, since it is larger than the sum of its proper divisors (998960).

1321204 is a wasteful number, since it uses less digits than its factorization.

1321204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1321204 is about 1149.4363836246. The cubic root of 1321204 is about 109.7294729694.

Adding to 1321204 its reverse (4021231), we get a palindrome (5342435).

The spelling of 1321204 in words is "one million, three hundred twenty-one thousand, two hundred four".