1304213 has 8 divisors (see below), whose sum is σ = 1356600. Its totient is φ = 1252800.

The previous prime is 1304209. The next prime is 1304221. The reversal of 1304213 is 3124031.

It can be written as a sum of positive squares in 4 ways, for example, as 964324 + 339889 = 982^2 + 583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304213 - 2² = 1304209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3563 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (169575).

2^1304213 is an apocalyptic number.

It is an amenable number.

1304213 is a deficient number, since it is larger than the sum of its proper divisors (52387).

1304213 is a wasteful number, since it uses less digits than its factorization.

1304213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1304213 is about 1142.0214533887. The cubic root of 1304213 is about 109.2570595902.

Adding to 1304213 its reverse (3124031), we get a palindrome (4428244).

The spelling of 1304213 in words is "one million, three hundred four thousand, two hundred thirteen".