201905519 has 2 divisors, whose sum is σ = 201905520. Its totient is φ = 201905518.

The previous prime is 201905513. The next prime is 201905521. The reversal of 201905519 is 915509102.

201905519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201905519 - 2¹² = 201901423 is a prime.

It is a super-2 number, since 2×201905519² = 81531677205318722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 201905521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201905513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100952759 + 100952760.

It is an arithmetic number, because the mean of its divisors is an integer number (100952760).

Almost surely, 2^201905519 is an apocalyptic number.

201905519 is a deficient number, since it is larger than the sum of its proper divisors (1).

201905519 is an equidigital number, since it uses as much as digits as its factorization.

201905519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 201905519 is about 14209.3461848179. The cubic root of 201905519 is about 586.6549373875.

The spelling of 201905519 in words is "two hundred one million, nine hundred five thousand, five hundred nineteen".