1004211645 has 8 divisors (see below), whose sum is σ = 1606738656. Its totient is φ = 535579536.

The previous prime is 1004211631. The next prime is 1004211713. The reversal of 1004211645 is 5461124001.

It is a happy number.

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

It is not a de Polignac number, because 1004211645 - 2⁹ = 1004211133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33473707 + ... + 33473736.

It is an arithmetic number, because the mean of its divisors is an integer number (200842332).

Almost surely, 2^1004211645 is an apocalyptic number.

1004211645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004211645 is a deficient number, since it is larger than the sum of its proper divisors (602527011).

1004211645 is an equidigital number, since it uses as much as digits as its factorization.

1004211645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66947451.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1004211645 is about 31689.2985880092. The cubic root of 1004211645 is about 1001.4019153815.

Adding to 1004211645 its reverse (5461124001), we get a palindrome (6465335646).

The spelling of 1004211645 in words is "one billion, four million, two hundred eleven thousand, six hundred forty-five".