145418519 has 2 divisors, whose sum is σ = 145418520. Its totient is φ = 145418518.

The previous prime is 145418467. The next prime is 145418521. The reversal of 145418519 is 915814541.

It is a happy number.

145418519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (915814541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145418519 is a prime.

It is a super-2 number, since 2×145418519² = 42293091336306722, which contains 22 as substring.

Together with 145418521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145418569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72709259 + 72709260.

It is an arithmetic number, because the mean of its divisors is an integer number (72709260).

Almost surely, 2^145418519 is an apocalyptic number.

145418519 is a deficient number, since it is larger than the sum of its proper divisors (1).

145418519 is an equidigital number, since it uses as much as digits as its factorization.

145418519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 38.

The square root of 145418519 is about 12058.9601127129. The cubic root of 145418519 is about 525.8637560553.

The spelling of 145418519 in words is "one hundred forty-five million, four hundred eighteen thousand, five hundred nineteen".