1262216803 has 2 divisors, whose sum is σ = 1262216804. Its totient is φ = 1262216802.

The previous prime is 1262216789. The next prime is 1262216831. The reversal of 1262216803 is 3086122621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1262216803 - 2¹³ = 1262208611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262216003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631108401 + 631108402.

It is an arithmetic number, because the mean of its divisors is an integer number (631108402).

Almost surely, 2^1262216803 is an apocalyptic number.

1262216803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262216803 is an equidigital number, since it uses as much as digits as its factorization.

1262216803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1262216803 is about 35527.6906510964. The cubic root of 1262216803 is about 1080.7153476948.

The spelling of 1262216803 in words is "one billion, two hundred sixty-two million, two hundred sixteen thousand, eight hundred three".