1838074129 has 2 divisors, whose sum is σ = 1838074130. Its totient is φ = 1838074128.

The previous prime is 1838074127. The next prime is 1838074223. The reversal of 1838074129 is 9214708381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1338462225 + 499611904 = 36585^2 + 22352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838074129 - 2¹ = 1838074127 is a prime.

Together with 1838074127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1838074127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919037064 + 919037065.

It is an arithmetic number, because the mean of its divisors is an integer number (919037065).

Almost surely, 2^1838074129 is an apocalyptic number.

It is an amenable number.

1838074129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838074129 is an equidigital number, since it uses as much as digits as its factorization.

1838074129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1838074129 is about 42872.7667523336. The cubic root of 1838074129 is about 1224.9574615799.

The spelling of 1838074129 in words is "one billion, eight hundred thirty-eight million, seventy-four thousand, one hundred twenty-nine".