1204213 has 4 divisors (see below), whose sum is σ = 1226988. Its totient is φ = 1181440.

The previous prime is 1204207. The next prime is 1204219. The reversal of 1204213 is 3124021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1204207) and next prime (1204219).

It can be written as a sum of positive squares in 2 ways, for example, as 675684 + 528529 = 822^2 + 727^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204213 - 2¹⁷ = 1073141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204193 and 1204202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11308 + ... + 11413.

It is an arithmetic number, because the mean of its divisors is an integer number (306747).

2^1204213 is an apocalyptic number.

It is an amenable number.

1204213 is a deficient number, since it is larger than the sum of its proper divisors (22775).

1204213 is an equidigital number, since it uses as much as digits as its factorization.

1204213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22774.

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

The square root of 1204213 is about 1097.3663927786. The cubic root of 1204213 is about 106.3900722359.

Adding to 1204213 its reverse (3124021), we get a palindrome (4328234).

The spelling of 1204213 in words is "one million, two hundred four thousand, two hundred thirteen".