2019248281 has 2 divisors, whose sum is σ = 2019248282. Its totient is φ = 2019248280.

The previous prime is 2019248243. The next prime is 2019248293. The reversal of 2019248281 is 1828429102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1207910025 + 811338256 = 34755^2 + 28484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2019248281 - 2¹¹ = 2019246233 is a prime.

It is a super-2 number, since 2×2019248281² = 8154727240642909922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2019248281.

It is not a weakly prime, because it can be changed into another prime (2019248201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009624140 + 1009624141.

It is an arithmetic number, because the mean of its divisors is an integer number (1009624141).

Almost surely, 2^2019248281 is an apocalyptic number.

It is an amenable number.

2019248281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2019248281 is an equidigital number, since it uses as much as digits as its factorization.

2019248281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 2019248281 is about 44936.0465662034. The cubic root of 2019248281 is about 1263.9500379577.

The spelling of 2019248281 in words is "two billion, nineteen million, two hundred forty-eight thousand, two hundred eighty-one".