140243219 has 2 divisors, whose sum is σ = 140243220. Its totient is φ = 140243218.

The previous prime is 140243203. The next prime is 140243221. The reversal of 140243219 is 912342041.

140243219 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 140243219 - 2⁴ = 140243203 is a prime.

It is a super-2 number, since 2×140243219² = 39336320950963922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 140243221, 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 (140243239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70121609 + 70121610.

It is an arithmetic number, because the mean of its divisors is an integer number (70121610).

Almost surely, 2^140243219 is an apocalyptic number.

140243219 is a deficient number, since it is larger than the sum of its proper divisors (1).

140243219 is an equidigital number, since it uses as much as digits as its factorization.

140243219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 140243219 is about 11842.4329848220. The cubic root of 140243219 is about 519.5499298480.

The spelling of 140243219 in words is "one hundred forty million, two hundred forty-three thousand, two hundred nineteen".