1591348453 has 2 divisors, whose sum is σ = 1591348454. Its totient is φ = 1591348452.

The previous prime is 1591348441. The next prime is 1591348463. The reversal of 1591348453 is 3548431951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1135824804 + 455523649 = 33702^2 + 21343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1591348453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1591348463) 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, 795674226 + 795674227.

It is an arithmetic number, because the mean of its divisors is an integer number (795674227).

Almost surely, 2^1591348453 is an apocalyptic number.

It is an amenable number.

1591348453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1591348453 is an equidigital number, since it uses as much as digits as its factorization.

1591348453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 1591348453 is about 39891.7090759471. The cubic root of 1591348453 is about 1167.4951777592.

The spelling of 1591348453 in words is "one billion, five hundred ninety-one million, three hundred forty-eight thousand, four hundred fifty-three".