420293519 has 2 divisors, whose sum is σ = 420293520. Its totient is φ = 420293518.

The previous prime is 420293507. The next prime is 420293527. The reversal of 420293519 is 915392024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420293519 - 2²⁴ = 403516303 is a prime.

It is a super-2 number, since 2×420293519² = 353293284226806722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420293579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210146759 + 210146760.

It is an arithmetic number, because the mean of its divisors is an integer number (210146760).

Almost surely, 2^420293519 is an apocalyptic number.

420293519 is a deficient number, since it is larger than the sum of its proper divisors (1).

420293519 is an equidigital number, since it uses as much as digits as its factorization.

420293519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 420293519 is about 20501.0614115465. The cubic root of 420293519 is about 749.0616525691.

The spelling of 420293519 in words is "four hundred twenty million, two hundred ninety-three thousand, five hundred nineteen".