1081835140 has 24 divisors (see below), whose sum is σ = 2350194840. Its totient is φ = 417811968.

The previous prime is 1081835123. The next prime is 1081835141. The reversal of 1081835140 is 415381801.

It can be written as a sum of positive squares in 4 ways, for example, as 27793984 + 1054041156 = 5272^2 + 32466^2 .

It is a super-3 number, since 3×1081835140³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081835141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932037 + ... + 933196.

It is an arithmetic number, because the mean of its divisors is an integer number (97924785).

Almost surely, 2^1081835140 is an apocalyptic number.

1081835140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081835140 is an abundant number, since it is smaller than the sum of its proper divisors (1268359700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081835140 is a wasteful number, since it uses less digits than its factorization.

1081835140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865271 (or 1865269 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1081835140 is about 32891.2623655584. The cubic root of 1081835140 is about 1026.5663586620.

The spelling of 1081835140 in words is "one billion, eighty-one million, eight hundred thirty-five thousand, one hundred forty".