1021952863 has 2 divisors, whose sum is σ = 1021952864. Its totient is φ = 1021952862.

The previous prime is 1021952849. The next prime is 1021952873. The reversal of 1021952863 is 3682591201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021952863 - 2⁵ = 1021952831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021952803) 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, 510976431 + 510976432.

It is an arithmetic number, because the mean of its divisors is an integer number (510976432).

Almost surely, 2^1021952863 is an apocalyptic number.

1021952863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021952863 is an equidigital number, since it uses as much as digits as its factorization.

1021952863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1021952863 is about 31967.9974818568. The cubic root of 1021952863 is about 1007.2647170845.

The spelling of 1021952863 in words is "one billion, twenty-one million, nine hundred fifty-two thousand, eight hundred sixty-three".