4519423 has 2 divisors, whose sum is σ = 4519424. Its totient is φ = 4519422.

The previous prime is 4519421. The next prime is 4519441. The reversal of 4519423 is 3249154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4519423 - 2¹ = 4519421 is a prime.

Together with 4519421, it forms a pair of twin primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4519391 and 4519400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4519421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2259711 + 2259712.

It is an arithmetic number, because the mean of its divisors is an integer number (2259712).

Almost surely, 2^4519423 is an apocalyptic number.

4519423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4519423 is an equidigital number, since it uses as much as digits as its factorization.

4519423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 4519423 is about 2125.8934592307. The cubic root of 4519423 is about 165.3335523793. Note that the first 3 decimals are identical.

The spelling of 4519423 in words is "four million, five hundred nineteen thousand, four hundred twenty-three".