1838005243 has 2 divisors, whose sum is σ = 1838005244. Its totient is φ = 1838005242.

The previous prime is 1838005237. The next prime is 1838005249. The reversal of 1838005243 is 3425008381.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1838005237) and next prime (1838005249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838005243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1838005199 and 1838005208.

It is not a weakly prime, because it can be changed into another prime (1838005249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919002621 + 919002622.

It is an arithmetic number, because the mean of its divisors is an integer number (919002622).

Almost surely, 2^1838005243 is an apocalyptic number.

1838005243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838005243 is an equidigital number, since it uses as much as digits as its factorization.

1838005243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1838005243 is about 42871.9633676835. The cubic root of 1838005243 is about 1224.9421587017.

The spelling of 1838005243 in words is "one billion, eight hundred thirty-eight million, five thousand, two hundred forty-three".