1081603892 has 6 divisors (see below), whose sum is σ = 1892806818. Its totient is φ = 540801944.

The previous prime is 1081603891. The next prime is 1081603909. The reversal of 1081603892 is 2983061801.

It can be written as a sum of positive squares in only one way, i.e., 674129296 + 407474596 = 25964^2 + 20186^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081603891) by changing a digit.

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 as a sum of consecutive naturals, namely, 135200483 + ... + 135200490.

It is an arithmetic number, because the mean of its divisors is an integer number (315467803).

Almost surely, 2^1081603892 is an apocalyptic number.

It is an amenable number.

1081603892 is a deficient number, since it is larger than the sum of its proper divisors (811202926).

1081603892 is a wasteful number, since it uses less digits than its factorization.

1081603892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270400977 (or 270400975 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1081603892 is about 32887.7468367780. The cubic root of 1081603892 is about 1026.4932087814.

The spelling of 1081603892 in words is "one billion, eighty-one million, six hundred three thousand, eight hundred ninety-two".