1820102 has 4 divisors (see below), whose sum is σ = 2730156. Its totient is φ = 910050.

The previous prime is 1820089. The next prime is 1820111. The reversal of 1820102 is 2010281.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455024 + ... + 455027.

It is an arithmetic number, because the mean of its divisors is an integer number (682539).

2^1820102 is an apocalyptic number.

1820102 is a deficient number, since it is larger than the sum of its proper divisors (910054).

1820102 is an equidigital number, since it uses as much as digits as its factorization.

1820102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910053.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1820102 is about 1349.1115595087. Note that the first 3 decimals coincide. The cubic root of 1820102 is about 122.0951957887.

Adding to 1820102 its reverse (2010281), we get a palindrome (3830383).

The spelling of 1820102 in words is "one million, eight hundred twenty thousand, one hundred two".