1304129 has 2 divisors, whose sum is σ = 1304130. Its totient is φ = 1304128.

The previous prime is 1304113. The next prime is 1304131. The reversal of 1304129 is 9214031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 49729 = 1120^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304129 - 2⁴ = 1304113 is a prime.

Together with 1304131, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304129.

It is not a weakly prime, because it can be changed into another prime (1304029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652064 + 652065.

It is an arithmetic number, because the mean of its divisors is an integer number (652065).

2^1304129 is an apocalyptic number.

It is an amenable number.

1304129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304129 is an equidigital number, since it uses as much as digits as its factorization.

1304129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1304129 is about 1141.9846759042. The cubic root of 1304129 is about 109.2547139125.

The spelling of 1304129 in words is "one million, three hundred four thousand, one hundred twenty-nine".