1838248229 has 2 divisors, whose sum is σ = 1838248230. Its totient is φ = 1838248228.

The previous prime is 1838248213. The next prime is 1838248253. The reversal of 1838248229 is 9228428381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1808545729 + 29702500 = 42527^2 + 5450^2 .

It is an emirp because it is prime and its reverse (9228428381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1838248229 - 2⁴ = 1838248213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838248429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919124114 + 919124115.

It is an arithmetic number, because the mean of its divisors is an integer number (919124115).

Almost surely, 2^1838248229 is an apocalyptic number.

It is an amenable number.

1838248229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838248229 is an equidigital number, since it uses as much as digits as its factorization.

1838248229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 47.

The square root of 1838248229 is about 42874.7971307154. The cubic root of 1838248229 is about 1224.9961358201.

The spelling of 1838248229 in words is "one billion, eight hundred thirty-eight million, two hundred forty-eight thousand, two hundred twenty-nine".