545420419 has 2 divisors, whose sum is σ = 545420420. Its totient is φ = 545420418.

The previous prime is 545420411. The next prime is 545420431. The reversal of 545420419 is 914024545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545420419 - 2³ = 545420411 is a prime.

It is a super-2 number, since 2×545420419² = 594966866924271122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545420411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272710209 + 272710210.

It is an arithmetic number, because the mean of its divisors is an integer number (272710210).

Almost surely, 2^545420419 is an apocalyptic number.

545420419 is a deficient number, since it is larger than the sum of its proper divisors (1).

545420419 is an equidigital number, since it uses as much as digits as its factorization.

545420419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 545420419 is about 23354.2377096749. The cubic root of 545420419 is about 817.0409004991.

The spelling of 545420419 in words is "five hundred forty-five million, four hundred twenty thousand, four hundred nineteen".