1259040803 has 2 divisors, whose sum is σ = 1259040804. Its totient is φ = 1259040802.

The previous prime is 1259040787. The next prime is 1259040821. The reversal of 1259040803 is 3080409521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1259040803 - 2⁴ = 1259040787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1259040803.

It is not a weakly prime, because it can be changed into another prime (1259040703) 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, 629520401 + 629520402.

It is an arithmetic number, because the mean of its divisors is an integer number (629520402).

Almost surely, 2^1259040803 is an apocalyptic number.

1259040803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1259040803 is an equidigital number, since it uses as much as digits as its factorization.

1259040803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1259040803 is about 35482.9649691229. The cubic root of 1259040803 is about 1079.8081515078.

The spelling of 1259040803 in words is "one billion, two hundred fifty-nine million, forty thousand, eight hundred three".