6519145223 has 2 divisors, whose sum is σ = 6519145224. Its totient is φ = 6519145222.

The previous prime is 6519145201. The next prime is 6519145249. The reversal of 6519145223 is 3225419156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6519145223 - 2²⁸ = 6250709767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6519145123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3259572611 + 3259572612.

It is an arithmetic number, because the mean of its divisors is an integer number (3259572612).

Almost surely, 2^6519145223 is an apocalyptic number.

6519145223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6519145223 is an equidigital number, since it uses as much as digits as its factorization.

6519145223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 6519145223 is about 80741.2238141087. The cubic root of 6519145223 is about 1868.0860838801.

The spelling of 6519145223 in words is "six billion, five hundred nineteen million, one hundred forty-five thousand, two hundred twenty-three".