145040219 has 2 divisors, whose sum is σ = 145040220. Its totient is φ = 145040218.

The previous prime is 145040183. The next prime is 145040221. The reversal of 145040219 is 912040541.

It is a strong prime.

It is an emirp because it is prime and its reverse (912040541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145040219 - 2¹² = 145036123 is a prime.

It is a super-2 number, since 2×145040219² = 42073330255135922, which contains 22 as substring.

Together with 145040221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145040279) 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, 72520109 + 72520110.

It is an arithmetic number, because the mean of its divisors is an integer number (72520110).

Almost surely, 2^145040219 is an apocalyptic number.

145040219 is a deficient number, since it is larger than the sum of its proper divisors (1).

145040219 is an equidigital number, since it uses as much as digits as its factorization.

145040219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 145040219 is about 12043.2644660823. The cubic root of 145040219 is about 525.4073561040.

The spelling of 145040219 in words is "one hundred forty-five million, forty thousand, two hundred nineteen".