1000021146 has 8 divisors (see below), whose sum is σ = 2000042304. Its totient is φ = 333340380.

The previous prime is 1000021133. The next prime is 1000021189. The reversal of 1000021146 is 6411200001.

It is a sphenic number, since it is the product of 3 distinct primes.

1000021146 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83335090 + ... + 83335101.

It is an arithmetic number, because the mean of its divisors is an integer number (250005288).

Almost surely, 2^1000021146 is an apocalyptic number.

1000021146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1000021146 is a wasteful number, since it uses less digits than its factorization.

1000021146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166670196.

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

The square root of 1000021146 is about 31623.1109475333. The cubic root of 1000021146 is about 1000.0070486170.

Adding to 1000021146 its reverse (6411200001), we get a palindrome (7411221147).

The spelling of 1000021146 in words is "one billion, twenty-one thousand, one hundred forty-six".