1938134027 has 2 divisors, whose sum is σ = 1938134028. Its totient is φ = 1938134026.

The previous prime is 1938134021. The next prime is 1938134041. The reversal of 1938134027 is 7204318391.

It is a weak prime.

It is an emirp because it is prime and its reverse (7204318391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1938134027 - 2¹⁶ = 1938068491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1938134021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969067013 + 969067014.

It is an arithmetic number, because the mean of its divisors is an integer number (969067014).

Almost surely, 2^1938134027 is an apocalyptic number.

1938134027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938134027 is an equidigital number, since it uses as much as digits as its factorization.

1938134027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1938134027 is about 44024.2436278013. The cubic root of 1938134027 is about 1246.7937085479.

The spelling of 1938134027 in words is "one billion, nine hundred thirty-eight million, one hundred thirty-four thousand, twenty-seven".