1815102 has 16 divisors (see below), whose sum is σ = 4033680. Its totient is φ = 605016.

The previous prime is 1815101. The next prime is 1815103. The reversal of 1815102 is 2015181.

It is an interprime number because it is at equal distance from previous prime (1815101) and next prime (1815103).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1815101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16753 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (252105).

2^1815102 is an apocalyptic number.

1815102 is an abundant number, since it is smaller than the sum of its proper divisors (2218578).

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

1815102 is a wasteful number, since it uses less digits than its factorization.

1815102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33624 (or 33618 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1815102 is about 1347.2572137495. The cubic root of 1815102 is about 121.9832907332.

The spelling of 1815102 in words is "one million, eight hundred fifteen thousand, one hundred two".