1012634863 has 2 divisors, whose sum is σ = 1012634864. Its totient is φ = 1012634862.

The previous prime is 1012634827. The next prime is 1012634867. The reversal of 1012634863 is 3684362101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012634863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012634867) 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, 506317431 + 506317432.

It is an arithmetic number, because the mean of its divisors is an integer number (506317432).

Almost surely, 2^1012634863 is an apocalyptic number.

1012634863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012634863 is an equidigital number, since it uses as much as digits as its factorization.

1012634863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1012634863 is about 31821.9242504284. The cubic root of 1012634863 is about 1004.1940067172.

Adding to 1012634863 its reverse (3684362101), we get a palindrome (4696996964).

The spelling of 1012634863 in words is "one billion, twelve million, six hundred thirty-four thousand, eight hundred sixty-three".