1304137397 has 2 divisors, whose sum is σ = 1304137398. Its totient is φ = 1304137396.

The previous prime is 1304137369. The next prime is 1304137423. The reversal of 1304137397 is 7937314031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1156612081 + 147525316 = 34009^2 + 12146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304137397 - 2¹² = 1304133301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304137397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304136397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652068698 + 652068699.

It is an arithmetic number, because the mean of its divisors is an integer number (652068699).

Almost surely, 2^1304137397 is an apocalyptic number.

It is an amenable number.

1304137397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304137397 is an equidigital number, since it uses as much as digits as its factorization.

1304137397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 1304137397 is about 36112.8425494311. The cubic root of 1304137397 is about 1092.5494840103.

The spelling of 1304137397 in words is "one billion, three hundred four million, one hundred thirty-seven thousand, three hundred ninety-seven".