304121 has 4 divisors (see below), whose sum is σ = 306000. Its totient is φ = 302244.

The previous prime is 304099. The next prime is 304127. The reversal of 304121 is 121403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 304121 - 2¹⁰ = 303097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671 + ... + 1028.

It is an arithmetic number, because the mean of its divisors is an integer number (76500).

2³⁰⁴¹²¹ is an apocalyptic number.

It is an amenable number.

304121 is a deficient number, since it is larger than the sum of its proper divisors (1879).

304121 is a wasteful number, since it uses less digits than its factorization.

304121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 304121 is about 551.4716674499. The cubic root of 304121 is about 67.2484279839.

Adding to 304121 its reverse (121403), we get a palindrome (425524).

The spelling of 304121 in words is "three hundred four thousand, one hundred twenty-one", and thus it is an iban number.