144465169 has 4 divisors (see below), whose sum is σ = 147538944. Its totient is φ = 141391396.

The previous prime is 144465163. The next prime is 144465179. The reversal of 144465169 is 961564441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961564441 = 269 ⋅3574589.

It is a cyclic number.

It is not a de Polignac number, because 144465169 - 2³ = 144465161 is a prime.

It is a super-2 number, since 2×144465169² = 41740370108397122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144465161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536817 + ... + 1536910.

It is an arithmetic number, because the mean of its divisors is an integer number (36884736).

Almost surely, 2^144465169 is an apocalyptic number.

It is an amenable number.

144465169 is a deficient number, since it is larger than the sum of its proper divisors (3073775).

144465169 is an equidigital number, since it uses as much as digits as its factorization.

144465169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073774.

The product of its digits is 103680, while the sum is 40.

The square root of 144465169 is about 12019.3664142500. The cubic root of 144465169 is about 524.7120646358.

The spelling of 144465169 in words is "one hundred forty-four million, four hundred sixty-five thousand, one hundred sixty-nine".