1002105 has 32 divisors (see below), whose sum is σ = 1921920. Its totient is φ = 492480.

The previous prime is 1002101. The next prime is 1002109. The reversal of 1002105 is 5012001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1002101) and next prime (1002109).

It is not a de Polignac number, because 1002105 - 2² = 1002101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1002101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1470 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (60060).

2^1002105 is an apocalyptic number.

1002105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002105 is a deficient number, since it is larger than the sum of its proper divisors (919815).

1002105 is a wasteful number, since it uses less digits than its factorization.

1002105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 1002105 is about 1001.0519467041. The cubic root of 1002105 is about 100.0701174906.

Adding to 1002105 its reverse (5012001), we get a palindrome (6014106).

The spelling of 1002105 in words is "one million, two thousand, one hundred five".