1304121 has 32 divisors (see below), whose sum is σ = 2274048. Its totient is φ = 645120.

The previous prime is 1304113. The next prime is 1304129. The reversal of 1304121 is 1214031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1304113) and next prime (1304129).

It is not a de Polignac number, because 1304121 - 2³ = 1304113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304097 and 1304106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4501 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (71064).

2^1304121 is an apocalyptic number.

It is an amenable number.

1304121 is a deficient number, since it is larger than the sum of its proper divisors (969927).

1304121 is a wasteful number, since it uses less digits than its factorization.

1304121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1304121 is about 1141.9811732248. The cubic root of 1304121 is about 109.2544905094.

Adding to 1304121 its reverse (1214031), we get a palindrome (2518152).

The spelling of 1304121 in words is "one million, three hundred four thousand, one hundred twenty-one".