1051665863 has 2 divisors, whose sum is σ = 1051665864. Its totient is φ = 1051665862.

The previous prime is 1051665829. The next prime is 1051665887. The reversal of 1051665863 is 3685661501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1051665863 - 2¹⁶ = 1051600327 is a prime.

It is a super-2 number, since 2×1051665863² = 2212002174799069538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051665863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051665893) 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, 525832931 + 525832932.

It is an arithmetic number, because the mean of its divisors is an integer number (525832932).

Almost surely, 2^1051665863 is an apocalyptic number.

1051665863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051665863 is an equidigital number, since it uses as much as digits as its factorization.

1051665863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1051665863 is about 32429.3981288583. The cubic root of 1051665863 is about 1016.9335893366.

The spelling of 1051665863 in words is "one billion, fifty-one million, six hundred sixty-five thousand, eight hundred sixty-three".