1303390247 has 2 divisors, whose sum is σ = 1303390248. Its totient is φ = 1303390246.

The previous prime is 1303390241. The next prime is 1303390267. The reversal of 1303390247 is 7420933031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1303390247 - 2⁶ = 1303390183 is a prime.

It is a super-2 number, since 2×1303390247² = 3397652271949442018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303390241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651695123 + 651695124.

It is an arithmetic number, because the mean of its divisors is an integer number (651695124).

Almost surely, 2^1303390247 is an apocalyptic number.

1303390247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303390247 is an equidigital number, since it uses as much as digits as its factorization.

1303390247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 1303390247 is about 36102.4964095282. The cubic root of 1303390247 is about 1092.3408009155.

The spelling of 1303390247 in words is "one billion, three hundred three million, three hundred ninety thousand, two hundred forty-seven".