1063946915 has 4 divisors (see below), whose sum is σ = 1276736304. Its totient is φ = 851157528.

The previous prime is 1063946909. The next prime is 1063946927. The reversal of 1063946915 is 5196493601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1063946915 - 2⁸ = 1063946659 is a prime.

It is a super-2 number, since 2×1063946915² = 2263966075876034450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106394687 + ... + 106394696.

It is an arithmetic number, because the mean of its divisors is an integer number (319184076).

Almost surely, 2^1063946915 is an apocalyptic number.

1063946915 is a deficient number, since it is larger than the sum of its proper divisors (212789389).

1063946915 is an equidigital number, since it uses as much as digits as its factorization.

1063946915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212789388.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 1063946915 is about 32618.1991379046. The cubic root of 1063946915 is about 1020.8767660025.

The spelling of 1063946915 in words is "one billion, sixty-three million, nine hundred forty-six thousand, nine hundred fifteen".