1081643395 has 24 divisors (see below), whose sum is σ = 1512734400. Its totient is φ = 740299392.

The previous prime is 1081643347. The next prime is 1081643417. The reversal of 1081643395 is 5933461801.

It is not a de Polignac number, because 1081643395 - 2²⁹ = 544772483 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135526 + ... + 143284.

It is an arithmetic number, because the mean of its divisors is an integer number (63030600).

Almost surely, 2^1081643395 is an apocalyptic number.

1081643395 is a deficient number, since it is larger than the sum of its proper divisors (431091005).

1081643395 is an equidigital number, since it uses as much as digits as its factorization.

1081643395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8347 (or 8340 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1081643395 is about 32888.3474045140. The cubic root of 1081643395 is about 1026.5057053672.

The spelling of 1081643395 in words is "one billion, eighty-one million, six hundred forty-three thousand, three hundred ninety-five".