1002081 has 8 divisors (see below), whose sum is σ = 1368864. Its totient is φ = 651680.

The previous prime is 1002077. The next prime is 1002083. The reversal of 1002081 is 1802001.

It is a happy number.

1002081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1002081 - 2² = 1002077 is a prime.

It is a super-2 number, since 2×1002081² = 2008332661122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002083) 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, 3951 + ... + 4196.

It is an arithmetic number, because the mean of its divisors is an integer number (171108).

2^1002081 is an apocalyptic number.

It is an amenable number.

1002081 is a deficient number, since it is larger than the sum of its proper divisors (366783).

1002081 is an equidigital number, since it uses as much as digits as its factorization.

1002081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1002081 is about 1001.0399592424. The cubic root of 1002081 is about 100.0693186049.

Adding to 1002081 its reverse (1802001), we get a palindrome (2804082).

It can be divided in two parts, 10020 and 81, that added together give a palindrome (10101).

The spelling of 1002081 in words is "one million, two thousand, eighty-one".