1021002 has 8 divisors (see below), whose sum is σ = 2042016. Its totient is φ = 340332.

The previous prime is 1021001. The next prime is 1021019. The reversal of 1021002 is 2001201.

It is a happy number.

1021002 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.

1021002 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (6), and also a Moran number because the ratio is a prime number: 170167 = 1021002 / (1 + 0 + 2 + 1 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (1021001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85078 + ... + 85089.

It is an arithmetic number, because the mean of its divisors is an integer number (255252).

2^1021002 is an apocalyptic number.

1021002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021002 is a wasteful number, since it uses less digits than its factorization.

1021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170172.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1021002 is about 1010.4464359876. The cubic root of 1021002 is about 100.6952221278.

Adding to 1021002 its reverse (2001201), we get a palindrome (3022203).

It can be divided in two parts, 10 and 21002, that added together give a palindrome (21012).

The spelling of 1021002 in words is "one million, twenty-one thousand, two".