1304013157 has 2 divisors, whose sum is σ = 1304013158. Its totient is φ = 1304013156.

The previous prime is 1304013133. The next prime is 1304013197. The reversal of 1304013157 is 7513104031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304004321 + 8836 = 36111^2 + 94^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304013157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304013197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652006578 + 652006579.

It is an arithmetic number, because the mean of its divisors is an integer number (652006579).

Almost surely, 2^1304013157 is an apocalyptic number.

It is an amenable number.

1304013157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304013157 is an equidigital number, since it uses as much as digits as its factorization.

1304013157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1304013157 is about 36111.1223447846. The cubic root of 1304013157 is about 1092.5147886224.

Adding to 1304013157 its reverse (7513104031), we get a palindrome (8817117188).

The spelling of 1304013157 in words is "one billion, three hundred four million, thirteen thousand, one hundred fifty-seven".