144735191 has 2 divisors, whose sum is σ = 144735192. Its totient is φ = 144735190.

The previous prime is 144735167. The next prime is 144735193. The reversal of 144735191 is 191537441.

It is a strong prime.

It is an emirp because it is prime and its reverse (191537441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144735191 - 2²⁶ = 77626327 is a prime.

It is a Sophie Germain prime.

Together with 144735193, 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 (144735193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72367595 + 72367596.

It is an arithmetic number, because the mean of its divisors is an integer number (72367596).

Almost surely, 2^144735191 is an apocalyptic number.

144735191 is a deficient number, since it is larger than the sum of its proper divisors (1).

144735191 is an equidigital number, since it uses as much as digits as its factorization.

144735191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 144735191 is about 12030.5939587370. The cubic root of 144735191 is about 525.0387768788.

The spelling of 144735191 in words is "one hundred forty-four million, seven hundred thirty-five thousand, one hundred ninety-one".