1063436281 has 2 divisors, whose sum is σ = 1063436282. Its totient is φ = 1063436280.

The previous prime is 1063436279. The next prime is 1063436323. The reversal of 1063436281 is 1826343601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000773225 + 62663056 = 31635^2 + 7916^2 .

It is a cyclic number.

It is not a de Polignac number, because 1063436281 - 2¹ = 1063436279 is a prime.

It is a super-2 number, since 2×1063436281² = 2261793447494221922, which contains 22 as substring.

Together with 1063436279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1063436081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531718140 + 531718141.

It is an arithmetic number, because the mean of its divisors is an integer number (531718141).

Almost surely, 2^1063436281 is an apocalyptic number.

It is an amenable number.

1063436281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1063436281 is an equidigital number, since it uses as much as digits as its factorization.

1063436281 is an evil number, because the sum of its binary digits is even.

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

The square root of 1063436281 is about 32610.3707583953. The cubic root of 1063436281 is about 1020.7134189412.

Adding to 1063436281 its reverse (1826343601), we get a palindrome (2889779882).

The spelling of 1063436281 in words is "one billion, sixty-three million, four hundred thirty-six thousand, two hundred eighty-one".