144667169 has 4 divisors (see below), whose sum is σ = 145708080. Its totient is φ = 143626260.

The previous prime is 144667163. The next prime is 144667177. The reversal of 144667169 is 961766441.

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.

It is a cyclic number.

It is not a de Polignac number, because 144667169 - 2⁴ = 144667153 is a prime.

It is a super-2 number, since 2×144667169² = 41857179572949122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144667163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520247 + ... + 520524.

It is an arithmetic number, because the mean of its divisors is an integer number (36427020).

Almost surely, 2^144667169 is an apocalyptic number.

It is an amenable number.

144667169 is a deficient number, since it is larger than the sum of its proper divisors (1040911).

144667169 is a wasteful number, since it uses less digits than its factorization.

144667169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040910.

The product of its digits is 217728, while the sum is 44.

The square root of 144667169 is about 12027.7665840338. The cubic root of 144667169 is about 524.9565121953.

The spelling of 144667169 in words is "one hundred forty-four million, six hundred sixty-seven thousand, one hundred sixty-nine".