20300519 has 2 divisors, whose sum is σ = 20300520. Its totient is φ = 20300518.

The previous prime is 20300507. The next prime is 20300557. The reversal of 20300519 is 91500302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20300519 is a prime.

It is a super-2 number, since 2×20300519² = 824222143338722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20300519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150259 + 10150260.

It is an arithmetic number, because the mean of its divisors is an integer number (10150260).

Almost surely, 2^20300519 is an apocalyptic number.

20300519 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300519 is an equidigital number, since it uses as much as digits as its factorization.

20300519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20300519 is about 4505.6097256642. The cubic root of 20300519 is about 272.7945651761.

The spelling of 20300519 in words is "twenty million, three hundred thousand, five hundred nineteen".