1020186 has 36 divisors (see below), whose sum is σ = 2347722. Its totient is φ = 320112.

The previous prime is 1020163. The next prime is 1020223. The reversal of 1020186 is 6810201.

1020186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 938961 + 81225 = 969^2 + 285^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6420 + ... + 6576.

2^1020186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173861).

1020186 is an abundant number, since it is smaller than the sum of its proper divisors (1327536).

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

1020186 is a wasteful number, since it uses less digits than its factorization.

1020186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 181 counting only the distinct ones).

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

The square root of 1020186 is about 1010.0425733602. The cubic root of 1020186 is about 100.6683892712.

Adding to 1020186 its reverse (6810201), we get a palindrome (7830387).

The spelling of 1020186 in words is "one million, twenty thousand, one hundred eighty-six".