1020386219 has 4 divisors (see below), whose sum is σ = 1020501144. Its totient is φ = 1020271296.

The previous prime is 1020386201. The next prime is 1020386221. The reversal of 1020386219 is 9126830201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020386219 - 2¹⁶ = 1020320683 is a prime.

It is a super-2 number, since 2×1020386219² = 2082376071850231922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020386119) 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 3 ways as a sum of consecutive naturals, for example, 42917 + ... + 62310.

It is an arithmetic number, because the mean of its divisors is an integer number (255125286).

Almost surely, 2^1020386219 is an apocalyptic number.

1020386219 is a deficient number, since it is larger than the sum of its proper divisors (114925).

1020386219 is an equidigital number, since it uses as much as digits as its factorization.

1020386219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114924.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1020386219 is about 31943.4847660677. The cubic root of 1020386219 is about 1006.7497447748.

The spelling of 1020386219 in words is "one billion, twenty million, three hundred eighty-six thousand, two hundred nineteen".