2019145822 has 16 divisors (see below), whose sum is σ = 3157839360. Its totient is φ = 967081248.

The previous prime is 2019145741. The next prime is 2019145829. The reversal of 2019145822 is 2285419102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019145829) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 129693 + ... + 144424.

It is an arithmetic number, because the mean of its divisors is an integer number (197364960).

Almost surely, 2^2019145822 is an apocalyptic number.

2019145822 is a deficient number, since it is larger than the sum of its proper divisors (1138693538).

2019145822 is a wasteful number, since it uses less digits than its factorization.

2019145822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274275.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2019145822 is about 44934.9064981780. The cubic root of 2019145822 is about 1263.9286594991.

The spelling of 2019145822 in words is "two billion, nineteen million, one hundred forty-five thousand, eight hundred twenty-two".