1314145247 has 2 divisors, whose sum is σ = 1314145248. Its totient is φ = 1314145246.

The previous prime is 1314145219. The next prime is 1314145249. The reversal of 1314145247 is 7425414131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7425414131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1314145247 is a prime.

Together with 1314145249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314145249) 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, 657072623 + 657072624.

It is an arithmetic number, because the mean of its divisors is an integer number (657072624).

Almost surely, 2^1314145247 is an apocalyptic number.

1314145247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314145247 is an equidigital number, since it uses as much as digits as its factorization.

1314145247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 1314145247 is about 36251.1413199640. The cubic root of 1314145247 is about 1095.3370790746.

Adding to 1314145247 its reverse (7425414131), we get a palindrome (8739559378).

The spelling of 1314145247 in words is "one billion, three hundred fourteen million, one hundred forty-five thousand, two hundred forty-seven".