1081001 has 4 divisors (see below), whose sum is σ = 1115904. Its totient is φ = 1046100.

The previous prime is 1080983. The next prime is 1081027. The reversal of 1081001 is 1001801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1081001 - 2¹⁰ = 1079977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1081051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17405 + ... + 17466.

It is an arithmetic number, because the mean of its divisors is an integer number (278976).

2^1081001 is an apocalyptic number.

It is an amenable number.

1081001 is a deficient number, since it is larger than the sum of its proper divisors (34903).

1081001 is an equidigital number, since it uses as much as digits as its factorization.

1081001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34902.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1081001 is about 1039.7119793481. The cubic root of 1081001 is about 102.6302449000.

Adding to 1081001 its reverse (1001801), we get a palindrome (2082802).

The spelling of 1081001 in words is "one million, eighty-one thousand, one".