1838314187 has 2 divisors, whose sum is σ = 1838314188. Its totient is φ = 1838314186.

The previous prime is 1838314141. The next prime is 1838314237. The reversal of 1838314187 is 7814138381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1838314187 - 2¹⁸ = 1838052043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1838314987) 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 as a sum of consecutive naturals, namely, 919157093 + 919157094.

It is an arithmetic number, because the mean of its divisors is an integer number (919157094).

Almost surely, 2^1838314187 is an apocalyptic number.

1838314187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838314187 is an equidigital number, since it uses as much as digits as its factorization.

1838314187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 44.

The square root of 1838314187 is about 42875.5663169596. The cubic root of 1838314187 is about 1225.0107869660.

The spelling of 1838314187 in words is "one billion, eight hundred thirty-eight million, three hundred fourteen thousand, one hundred eighty-seven".