1021146 has 32 divisors (see below), whose sum is σ = 2395008. Its totient is φ = 284160.

The previous prime is 1021129. The next prime is 1021157. The reversal of 1021146 is 6411201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1426 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2^1021146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197504).

1021146 is an abundant number, since it is smaller than the sum of its proper divisors (1373862).

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

1021146 is a wasteful number, since it uses less digits than its factorization.

1021146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1021146 is about 1010.5176891079. The cubic root of 1021146 is about 100.6999558535.

Adding to 1021146 its reverse (6411201), we get a palindrome (7432347).

The spelling of 1021146 in words is "one million, twenty-one thousand, one hundred forty-six".