1304131 has 2 divisors, whose sum is σ = 1304132. Its totient is φ = 1304130.

The previous prime is 1304129. The next prime is 1304137. The reversal of 1304131 is 1314031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304131 - 2¹ = 1304129 is a prime.

It is a super-2 number, since 2×1304131² = 3401515330322, which contains 22 as substring.

Together with 1304129, it forms a pair of twin primes.

1304131 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1304137) 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 as a sum of consecutive naturals, namely, 652065 + 652066.

It is an arithmetic number, because the mean of its divisors is an integer number (652066).

2^1304131 is an apocalyptic number.

1304131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304131 is an equidigital number, since it uses as much as digits as its factorization.

1304131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1304131 is about 1141.9855515723. The cubic root of 1304131 is about 109.2547697631.

Adding to 1304131 its reverse (1314031), we get a palindrome (2618162).

The spelling of 1304131 in words is "one million, three hundred four thousand, one hundred thirty-one".