1310554493 has 2 divisors, whose sum is σ = 1310554494. Its totient is φ = 1310554492.

The previous prime is 1310554471. The next prime is 1310554537. The reversal of 1310554493 is 3944550131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803268964 + 507285529 = 28342^2 + 22523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310554493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310554403) 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, 655277246 + 655277247.

It is an arithmetic number, because the mean of its divisors is an integer number (655277247).

Almost surely, 2^1310554493 is an apocalyptic number.

It is an amenable number.

1310554493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310554493 is an equidigital number, since it uses as much as digits as its factorization.

1310554493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1310554493 is about 36201.5813604876. The cubic root of 1310554493 is about 1094.3385406221.

The spelling of 1310554493 in words is "one billion, three hundred ten million, five hundred fifty-four thousand, four hundred ninety-three".