1005052019 has 8 divisors (see below), whose sum is σ = 1064603088. Its totient is φ = 945548800.

The previous prime is 1005052001. The next prime is 1005052021. The reversal of 1005052019 is 9102505001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005052019 - 2⁸ = 1005051763 is a prime.

It is a super-2 number, since 2×1005052019² = 2020259121791952722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005051985 and 1005052003.

It is not an unprimeable number, because it can be changed into a prime (1005052319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37064 + ... + 58170.

It is an arithmetic number, because the mean of its divisors is an integer number (133075386).

Almost surely, 2^1005052019 is an apocalyptic number.

1005052019 is a deficient number, since it is larger than the sum of its proper divisors (59551069).

1005052019 is a wasteful number, since it uses less digits than its factorization.

1005052019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23925.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1005052019 is about 31702.5554017338. Note that the first 3 decimals coincide. The cubic root of 1005052019 is about 1001.6811783887.

The spelling of 1005052019 in words is "one billion, five million, fifty-two thousand, nineteen".