145414219 has 2 divisors, whose sum is σ = 145414220. Its totient is φ = 145414218.

The previous prime is 145414189. The next prime is 145414223. The reversal of 145414219 is 912414541.

It is a strong prime.

It is an emirp because it is prime and its reverse (912414541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145414219 - 2¹⁵ = 145381451 is a prime.

It is a super-2 number, since 2×145414219² = 42290590174759922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145414259) 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, 72707109 + 72707110.

It is an arithmetic number, because the mean of its divisors is an integer number (72707110).

Almost surely, 2^145414219 is an apocalyptic number.

145414219 is a deficient number, since it is larger than the sum of its proper divisors (1).

145414219 is an equidigital number, since it uses as much as digits as its factorization.

145414219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 145414219 is about 12058.7818207313. The cubic root of 145414219 is about 525.8585727713.

The spelling of 145414219 in words is "one hundred forty-five million, four hundred fourteen thousand, two hundred nineteen".