144931219 has 2 divisors, whose sum is σ = 144931220. Its totient is φ = 144931218.

The previous prime is 144931177. The next prime is 144931229. The reversal of 144931219 is 912139441.

144931219 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 a cyclic number.

It is not a de Polignac number, because 144931219 - 2⁷ = 144931091 is a prime.

It is a super-2 number, since 2×144931219² = 42010116481651922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144931229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72465609 + 72465610.

It is an arithmetic number, because the mean of its divisors is an integer number (72465610).

Almost surely, 2^144931219 is an apocalyptic number.

144931219 is a deficient number, since it is larger than the sum of its proper divisors (1).

144931219 is an equidigital number, since it uses as much as digits as its factorization.

144931219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 144931219 is about 12038.7382644528. The cubic root of 144931219 is about 525.2757058291.

The spelling of 144931219 in words is "one hundred forty-four million, nine hundred thirty-one thousand, two hundred nineteen".