1420519 has 2 divisors, whose sum is σ = 1420520. Its totient is φ = 1420518.

The previous prime is 1420511. The next prime is 1420561. The reversal of 1420519 is 9150241.

It is a weak prime.

It is an emirp because it is prime and its reverse (9150241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420519 - 2³ = 1420511 is a prime.

It is a super-2 number, since 2×1420519² = 4035748458722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710259 + 710260.

It is an arithmetic number, because the mean of its divisors is an integer number (710260).

2^1420519 is an apocalyptic number.

1420519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420519 is an equidigital number, since it uses as much as digits as its factorization.

1420519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1420519 is about 1191.8552764493. The cubic root of 1420519 is about 112.4127784850.

The spelling of 1420519 in words is "one million, four hundred twenty thousand, five hundred nineteen".