385116019 has 2 divisors, whose sum is σ = 385116020. Its totient is φ = 385116018.

The previous prime is 385116013. The next prime is 385116023. The reversal of 385116019 is 910611583.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385116019 is a prime.

It is a super-2 number, since 2×385116019² = 296628696180816722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (385116013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192558009 + 192558010.

It is an arithmetic number, because the mean of its divisors is an integer number (192558010).

Almost surely, 2^385116019 is an apocalyptic number.

385116019 is a deficient number, since it is larger than the sum of its proper divisors (1).

385116019 is an equidigital number, since it uses as much as digits as its factorization.

385116019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 385116019 is about 19624.3730855281. The cubic root of 385116019 is about 727.5517022965.

The spelling of 385116019 in words is "three hundred eighty-five million, one hundred sixteen thousand, nineteen".