1313802547 has 2 divisors, whose sum is σ = 1313802548. Its totient is φ = 1313802546.

The previous prime is 1313802487. The next prime is 1313802559. The reversal of 1313802547 is 7452083131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7452083131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313802547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313802947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656901273 + 656901274.

It is an arithmetic number, because the mean of its divisors is an integer number (656901274).

Almost surely, 2^1313802547 is an apocalyptic number.

1313802547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313802547 is an equidigital number, since it uses as much as digits as its factorization.

1313802547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1313802547 is about 36246.4142640344. The cubic root of 1313802547 is about 1095.2418575730.

Adding to 1313802547 its reverse (7452083131), we get a palindrome (8765885678).

The spelling of 1313802547 in words is "one billion, three hundred thirteen million, eight hundred two thousand, five hundred forty-seven".