1081788956 has 6 divisors (see below), whose sum is σ = 1893130680. Its totient is φ = 540894476.

The previous prime is 1081788937. The next prime is 1081788973. The reversal of 1081788956 is 6598871801.

It is a junction number, because it is equal to n+sod(n) for n = 1081788898 and 1081788907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135223616 + ... + 135223623.

It is an arithmetic number, because the mean of its divisors is an integer number (315521780).

Almost surely, 2^1081788956 is an apocalyptic number.

It is an amenable number.

1081788956 is a deficient number, since it is larger than the sum of its proper divisors (811341724).

1081788956 is a wasteful number, since it uses less digits than its factorization.

1081788956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270447243 (or 270447241 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 53.

The square root of 1081788956 is about 32890.5602871097. The cubic root of 1081788956 is about 1026.5517502700.

The spelling of 1081788956 in words is "one billion, eighty-one million, seven hundred eighty-eight thousand, nine hundred fifty-six".