1000445122 has 8 divisors (see below), whose sum is σ = 1565914176. Its totient is φ = 478473732.

The previous prime is 1000445107. The next prime is 1000445129. The reversal of 1000445122 is 2215440001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1000445122.

It is not an unprimeable number, because it can be changed into a prime (1000445129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10874358 + ... + 10874449.

It is an arithmetic number, because the mean of its divisors is an integer number (195739272).

Almost surely, 2^1000445122 is an apocalyptic number.

1000445122 is a deficient number, since it is larger than the sum of its proper divisors (565469054).

1000445122 is a wasteful number, since it uses less digits than its factorization.

1000445122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21748832.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1000445122 is about 31629.8138154495. The cubic root of 1000445122 is about 1000.1483519906.

Adding to 1000445122 its reverse (2215440001), we get a palindrome (3215885123).

The spelling of 1000445122 in words is "one billion, four hundred forty-five thousand, one hundred twenty-two".