816102 has 64 divisors (see below), whose sum is σ = 2211840. Its totient is φ = 217728.

The previous prime is 816091. The next prime is 816103. The reversal of 816102 is 201618.

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 (816103) 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, 6363 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (34560).

2⁸¹⁶¹⁰² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 816102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105920).

816102 is an abundant number, since it is smaller than the sum of its proper divisors (1395738).

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

816102 is a wasteful number, since it uses less digits than its factorization.

816102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 816102 is about 903.3836394356. The cubic root of 816102 is about 93.4504680122.

It can be divided in two parts, 8 and 16102, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 816102 in words is "eight hundred sixteen thousand, one hundred two".