1001081755 has 8 divisors (see below), whose sum is σ = 1223964432. Its totient is φ = 785754528.

The previous prime is 1001081743. The next prime is 1001081761. The reversal of 1001081755 is 5571801001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001081755 - 2⁵ = 1001081723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1888569 + ... + 1889098.

It is an arithmetic number, because the mean of its divisors is an integer number (152995554).

Almost surely, 2^1001081755 is an apocalyptic number.

1001081755 is a deficient number, since it is larger than the sum of its proper divisors (222882677).

1001081755 is an equidigital number, since it uses as much as digits as its factorization.

1001081755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777725.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 1001081755 is about 31639.8760269379. The cubic root of 1001081755 is about 1000.3604550565.

Adding to 1001081755 its reverse (5571801001), we get a palindrome (6572882756).

The spelling of 1001081755 in words is "one billion, one million, eighty-one thousand, seven hundred fifty-five".