144163769 has 2 divisors, whose sum is σ = 144163770. Its totient is φ = 144163768.

The previous prime is 144163753. The next prime is 144163771. The reversal of 144163769 is 967361441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141324544 + 2839225 = 11888^2 + 1685^2 .

It is an emirp because it is prime and its reverse (967361441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144163769 - 2⁴ = 144163753 is a prime.

It is a super-2 number, since 2×144163769² = 41566384584570722, which contains 22 as substring.

Together with 144163771, 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 (144163709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72081884 + 72081885.

It is an arithmetic number, because the mean of its divisors is an integer number (72081885).

Almost surely, 2^144163769 is an apocalyptic number.

It is an amenable number.

144163769 is a deficient number, since it is larger than the sum of its proper divisors (1).

144163769 is an equidigital number, since it uses as much as digits as its factorization.

144163769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 144163769 is about 12006.8217693110. The cubic root of 144163769 is about 524.3469055057.

The spelling of 144163769 in words is "one hundred forty-four million, one hundred sixty-three thousand, seven hundred sixty-nine".