1938052019 has 2 divisors, whose sum is σ = 1938052020. Its totient is φ = 1938052018.

The previous prime is 1938051989. The next prime is 1938052027. The reversal of 1938052019 is 9102508391.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1938052019 is a prime.

It is a super-2 number, since 2×1938052019² = 7512091256699952722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1938052099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969026009 + 969026010.

It is an arithmetic number, because the mean of its divisors is an integer number (969026010).

Almost surely, 2^1938052019 is an apocalyptic number.

1938052019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938052019 is an equidigital number, since it uses as much as digits as its factorization.

1938052019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 1938052019 is about 44023.3122220489. The cubic root of 1938052019 is about 1246.7761231627.

The spelling of 1938052019 in words is "one billion, nine hundred thirty-eight million, fifty-two thousand, nineteen".