201930019 has 2 divisors, whose sum is σ = 201930020. Its totient is φ = 201930018.

The previous prime is 201930013. The next prime is 201930023. The reversal of 201930019 is 910039102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201930019 - 2²⁷ = 67712291 is a prime.

It is a super-3 number, since 3×201930019³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 201929975 and 201930002.

It is not a weakly prime, because it can be changed into another prime (201930013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100965009 + 100965010.

It is an arithmetic number, because the mean of its divisors is an integer number (100965010).

Almost surely, 2^201930019 is an apocalyptic number.

201930019 is a deficient number, since it is larger than the sum of its proper divisors (1).

201930019 is an equidigital number, since it uses as much as digits as its factorization.

201930019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 201930019 is about 14210.2082672985. The cubic root of 201930019 is about 586.6786654241.

The spelling of 201930019 in words is "two hundred one million, nine hundred thirty thousand, nineteen".